Номер 24, страница 33, часть 2 - гдз по алгебре 10 класс учебник Пак, Ардакулы

Авторы: Пак О. В., Ардакулы Д., Ескендирова Е. В.

Тип: Учебник

Издательство: Алматыкітап баспасы

Год издания: 2019 - 2026

Часть: 2

ISBN: 978-601-01-3958-9

Рекомендовано Министерством образования и науки Республики Казахстан

Часть 2. Глава 5. Производная. Параграф 2. Понятие производной. 2.3. Аналитическое определение производной - номер 24, страница 33.

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                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1097 …2}
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1098 …2}
                    "field_under_the_edition_degree" => null
                    "field_cover_description" => null
                    "field_publication_year" => "2019"
                    "field_publication_year_until" => null
                    "field_part" => "1, 2"
                    "field_part_writing" => "Часть"
                    "field_second_foreign_language" => null
                    "field_for_whom" => "Учебник для учащихся 10 класса общеобразовательной школы общественно-гуманитарного направления"
                    "field_allowed" => "Рекомендовано Министерством образования и науки Республики Казахстан"
                    "field_reserve_field" => null
                    "field_link_to_source" => null
                    "field_tasks_count" => "1063"
                    "field_priority" => "6"
                    "field_default_folder" => "/algebra_10/baspasy-u19/"
                    "field_isbn" => "978-601-01-3958-9"
                    "field_cover" => array:1 [ …1]
                    "field_cover_alts" => array:1 [ …1]
                    "field_covers" => array:1 [ …1]
                    "field_popular_book" => null
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1099 …2}
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1100 …2}
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1101 …2}
                    "field_url" => "/10-klass/algebra/baspasy-pak-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1102 …2}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "breadcrumbs" => array:3 [ …3]
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1103
              #items: []
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119426
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => null
            "field_branch_order" => "2"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1073}
            "field_page_start" => "5"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
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            "field_display_branch_page" => "1"
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            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1074}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1103}
          ]
          #changes: []
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          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
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          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        1 => App\Models\Branch {#1104
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1119427
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Производная"
            "field_branch_order" => "5"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1105
              #items: array:1 [
                0 => App\Models\Term {#1106
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:7 [
                    "id" => 29
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Глава"
                    "field_cases" => array:6 [ …6]
                    "field_page_check_not_needed" => null
                    "field_short_name" => null
                  ]
                  #original: array:7 [
                    "id" => 29
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Глава"
                    "field_cases" => array:6 [ …6]
                    "field_page_check_not_needed" => null
                    "field_short_name" => null
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "5"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1107
              #items: array:1 [
                0 => App\Models\Book {#1108
                  #connection: "mysql"
                  #table: "books"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:50 [
                    "id" => 4295
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_tree_default_status" => "tasks"
                    "field_pages_status" => null
                    "field_subject" => Illuminate\Database\Eloquent\Collection {#1109 …2}
                    "field_class" => Illuminate\Database\Eloquent\Collection {#1111 …2}
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1113 …2}
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1115 …2}
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1119 …2}
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1120 …2}
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1122 …2}
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1124 …2}
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1126 …2}
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1127 …2}
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1128 …2}
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1129 …2}
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                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1130 …2}
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1131 …2}
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                    "field_cover_description" => null
                    "field_publication_year" => "2019"
                    "field_publication_year_until" => null
                    "field_part" => "1, 2"
                    "field_part_writing" => "Часть"
                    "field_second_foreign_language" => null
                    "field_for_whom" => "Учебник для учащихся 10 класса общеобразовательной школы общественно-гуманитарного направления"
                    "field_allowed" => "Рекомендовано Министерством образования и науки Республики Казахстан"
                    "field_reserve_field" => null
                    "field_link_to_source" => null
                    "field_tasks_count" => "1063"
                    "field_priority" => "6"
                    "field_default_folder" => "/algebra_10/baspasy-u19/"
                    "field_isbn" => "978-601-01-3958-9"
                    "field_cover" => array:1 [ …1]
                    "field_cover_alts" => array:1 [ …1]
                    "field_covers" => array:1 [ …1]
                    "field_popular_book" => null
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1132 …2}
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1133 …2}
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1134 …2}
                    "field_url" => "/10-klass/algebra/baspasy-pak-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1135 …2}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "breadcrumbs" => array:3 [ …3]
                  ]
                  #original: array:50 [
                    "id" => 4295
                    "created_at" => "2026-04-10 13:58:26"
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                    "field_tree_default_status" => "tasks"
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                    "field_subject" => Illuminate\Database\Eloquent\Collection {#1109 …2}
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                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1119 …2}
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1120 …2}
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1122 …2}
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1124 …2}
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1126 …2}
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                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1128 …2}
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1129 …2}
                    "field_publication_number" => null
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1130 …2}
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                    "field_under_the_edition_degree" => null
                    "field_cover_description" => null
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                    "field_publication_year_until" => null
                    "field_part" => "1, 2"
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                    "field_for_whom" => "Учебник для учащихся 10 класса общеобразовательной школы общественно-гуманитарного направления"
                    "field_allowed" => "Рекомендовано Министерством образования и науки Республики Казахстан"
                    "field_reserve_field" => null
                    "field_link_to_source" => null
                    "field_tasks_count" => "1063"
                    "field_priority" => "6"
                    "field_default_folder" => "/algebra_10/baspasy-u19/"
                    "field_isbn" => "978-601-01-3958-9"
                    "field_cover" => array:1 [ …1]
                    "field_cover_alts" => array:1 [ …1]
                    "field_covers" => array:1 [ …1]
                    "field_popular_book" => null
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1132 …2}
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1133 …2}
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1134 …2}
                    "field_url" => "/10-klass/algebra/baspasy-pak-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1135 …2}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "breadcrumbs" => array:3 [ …3]
                  ]
                  #changes: []
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                    0 => "*"
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1136
              #items: array:1 [
                0 => App\Models\Branch {#1137
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
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                  #perPage: 15
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                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
                    "id" => 1119426
                    "created_at" => "2026-04-10 13:58:26"
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                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1138 …2}
                    "field_page_start" => "5"
                    "field_branch_display" => "0"
                    "field_branch_expanded" => "0"
                    "field_display_branch_in_title" => "1"
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                    "field_display_branch_page" => "1"
                    "field_branch_title_in_content" => "0"
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                    "field_metatags_description" => null
                    "field_h1" => null
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                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1140 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1169 …2}
                  ]
                  #original: array:24 [
                    "id" => 1119426
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => null
                    "field_branch_order" => "2"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1138 …2}
                    "field_page_start" => "5"
                    "field_branch_display" => "0"
                    "field_branch_expanded" => "0"
                    "field_display_branch_in_title" => "1"
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                    "field_display_branch_page" => "1"
                    "field_branch_title_in_content" => "0"
                    "field_navigation_title" => null
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1140 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1169 …2}
                  ]
                  #changes: []
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                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
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                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119427
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Производная"
            "field_branch_order" => "5"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1105}
            "field_page_start" => "5"
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            "field_display_branch_in_title" => "1"
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            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
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            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1107}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1136}
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
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          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        2 => App\Models\Branch {#1170
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1119431
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Понятие производной"
            "field_branch_order" => "2"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1171
              #items: array:1 [
                0 => App\Models\Term {#1172
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:7 [
                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [ …6]
                    "field_page_check_not_needed" => null
                    "field_short_name" => "§"
                  ]
                  #original: array:7 [
                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [ …6]
                    "field_page_check_not_needed" => null
                    "field_short_name" => "§"
                  ]
                  #changes: []
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                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
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                  #dispatchesEvents: []
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                  #touches: []
                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "25"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1173
              #items: array:1 [
                0 => App\Models\Book {#1174
                  #connection: "mysql"
                  #table: "books"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:50 [
                    "id" => 4295
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_tree_default_status" => "tasks"
                    "field_pages_status" => null
                    "field_subject" => Illuminate\Database\Eloquent\Collection {#1175 …2}
                    "field_class" => Illuminate\Database\Eloquent\Collection {#1177 …2}
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1179 …2}
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1181 …2}
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1185 …2}
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1186 …2}
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1188 …2}
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1190 …2}
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1192 …2}
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1193 …2}
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1194 …2}
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1195 …2}
                    "field_publication_number" => null
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            "text" => "<p>Задача состоит из двух частей: нахождение значения производной в точке и составление уравнения касательной в этой же точке. Для нахождения уравнения касательной необходимо знать значение производной, поэтому начнем с него.</p><p> <strong>Определите значение производной f'(-5)</strong> <br> Дана функция $f(x) = x^2 + 4x$. <br> Чтобы найти значение производной в конкретной точке, сначала найдем производную функции в общем виде. Используем правила дифференцирования: $(x^n)' = nx^{n-1}$ и $(c \cdot u(x))' = c \cdot u'(x)$. <br> $f'(x) = (x^2 + 4x)' = (x^2)' + (4x)' = 2x^{2-1} + 4 = 2x + 4$. <br> Теперь вычислим значение производной в точке с абсциссой $x_0 = -5$, подставив это значение в полученное выражение для $f'(x)$: <br> $f'(-5) = 2 \cdot (-5) + 4 = -10 + 4 = -6$. <br> Значение производной в точке касания равно угловому коэффициенту касательной. <br> Ответ: $f'(-5) = -6$.</p><p> <strong>Найдите уравнение касательной к графику функции f(x)=x²+4x в точке с абсциссой x₀=-5</strong> <br> Уравнение касательной к графику функции $y=f(x)$ в точке с абсциссой $x_0$ задается формулой: <br> $y = f(x_0) + f'(x_0)(x - x_0)$. <br> Нам известны следующие значения: <br> 1. Абсцисса точки касания: $x_0 = -5$. <br> 2. Значение производной в этой точке (найдено в предыдущем пункте): $f'(x_0) = f'(-5) = -6$. <br> Теперь необходимо найти ординату точки касания, то есть значение функции $f(x)$ при $x=x_0$: <br> $f(x_0) = f(-5) = (-5)^2 + 4(-5) = 25 - 20 = 5$. <br> Таким образом, точка касания имеет координаты $(-5; 5)$. <br> Подставим все найденные значения ($x_0=-5$, $f(x_0)=5$, $f'(x_0)=-6$) в формулу уравнения касательной: <br> $y = 5 + (-6)(x - (-5))$ <br> Раскроем скобки и приведем подобные слагаемые для получения уравнения в виде $y=kx+b$: <br> $y = 5 - 6(x + 5)$ <br> $y = 5 - 6x - 30$ <br> $y = -6x - 25$. <br> Ответ: $y = -6x - 25$.</p>"
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            "text" => "<p>Задача состоит из двух частей: нахождение значения производной в точке и составление уравнения касательной в этой же точке. Для нахождения уравнения касательной необходимо знать значение производной, поэтому начнем с него.</p><p> <strong>Определите значение производной f'(-5)</strong> <br> Дана функция $f(x) = x^2 + 4x$. <br> Чтобы найти значение производной в конкретной точке, сначала найдем производную функции в общем виде. Используем правила дифференцирования: $(x^n)' = nx^{n-1}$ и $(c \cdot u(x))' = c \cdot u'(x)$. <br> $f'(x) = (x^2 + 4x)' = (x^2)' + (4x)' = 2x^{2-1} + 4 = 2x + 4$. <br> Теперь вычислим значение производной в точке с абсциссой $x_0 = -5$, подставив это значение в полученное выражение для $f'(x)$: <br> $f'(-5) = 2 \cdot (-5) + 4 = -10 + 4 = -6$. <br> Значение производной в точке касания равно угловому коэффициенту касательной. <br> Ответ: $f'(-5) = -6$.</p><p> <strong>Найдите уравнение касательной к графику функции f(x)=x²+4x в точке с абсциссой x₀=-5</strong> <br> Уравнение касательной к графику функции $y=f(x)$ в точке с абсциссой $x_0$ задается формулой: <br> $y = f(x_0) + f'(x_0)(x - x_0)$. <br> Нам известны следующие значения: <br> 1. Абсцисса точки касания: $x_0 = -5$. <br> 2. Значение производной в этой точке (найдено в предыдущем пункте): $f'(x_0) = f'(-5) = -6$. <br> Теперь необходимо найти ординату точки касания, то есть значение функции $f(x)$ при $x=x_0$: <br> $f(x_0) = f(-5) = (-5)^2 + 4(-5) = 25 - 20 = 5$. <br> Таким образом, точка касания имеет координаты $(-5; 5)$. <br> Подставим все найденные значения ($x_0=-5$, $f(x_0)=5$, $f'(x_0)=-6$) в формулу уравнения касательной: <br> $y = 5 + (-6)(x - (-5))$ <br> Раскроем скобки и приведем подобные слагаемые для получения уравнения в виде $y=kx+b$: <br> $y = 5 - 6(x + 5)$ <br> $y = 5 - 6x - 30$ <br> $y = -6x - 25$. <br> Ответ: $y = -6x - 25$.</p>"
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№24 (с. 33)
Условие. №24 (с. 33)
скриншот условия
Алгебра, 10 класс Учебник, авторы: Пак Олег Владимирович, Ардакулы Дархан, Ескендирова Елена Викторовна, издательство Алматыкітап баспасы, Алматы, 2019, Часть 2, страница 33, номер 24, Условие

24. (4) Найдите уравнение касательной к графику функции $f(x)=x^2+4x$ в точке с абсциссой $x_0=-5$. Определите значение производной $f'(-5)$, (см. определение касательной к параболе в п.2.2 и пример 1).

Решение 2 (rus). №24 (с. 33)

Задача состоит из двух частей: нахождение значения производной в точке и составление уравнения касательной в этой же точке. Для нахождения уравнения касательной необходимо знать значение производной, поэтому начнем с него.

Определите значение производной f'(-5)
Дана функция $f(x) = x^2 + 4x$.
Чтобы найти значение производной в конкретной точке, сначала найдем производную функции в общем виде. Используем правила дифференцирования: $(x^n)' = nx^{n-1}$ и $(c \cdot u(x))' = c \cdot u'(x)$.
$f'(x) = (x^2 + 4x)' = (x^2)' + (4x)' = 2x^{2-1} + 4 = 2x + 4$.
Теперь вычислим значение производной в точке с абсциссой $x_0 = -5$, подставив это значение в полученное выражение для $f'(x)$:
$f'(-5) = 2 \cdot (-5) + 4 = -10 + 4 = -6$.
Значение производной в точке касания равно угловому коэффициенту касательной.
Ответ: $f'(-5) = -6$.

Найдите уравнение касательной к графику функции f(x)=x²+4x в точке с абсциссой x₀=-5
Уравнение касательной к графику функции $y=f(x)$ в точке с абсциссой $x_0$ задается формулой:
$y = f(x_0) + f'(x_0)(x - x_0)$.
Нам известны следующие значения:
1. Абсцисса точки касания: $x_0 = -5$.
2. Значение производной в этой точке (найдено в предыдущем пункте): $f'(x_0) = f'(-5) = -6$.
Теперь необходимо найти ординату точки касания, то есть значение функции $f(x)$ при $x=x_0$:
$f(x_0) = f(-5) = (-5)^2 + 4(-5) = 25 - 20 = 5$.
Таким образом, точка касания имеет координаты $(-5; 5)$.
Подставим все найденные значения ($x_0=-5$, $f(x_0)=5$, $f'(x_0)=-6$) в формулу уравнения касательной:
$y = 5 + (-6)(x - (-5))$
Раскроем скобки и приведем подобные слагаемые для получения уравнения в виде $y=kx+b$:
$y = 5 - 6(x + 5)$
$y = 5 - 6x - 30$
$y = -6x - 25$.
Ответ: $y = -6x - 25$.

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