Номер 15, страница 92, 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 6. Применение производной. Параграф 2. Экстремумы и критические точки - номер 15, страница 92.

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                        0 => App\Models\Term {#1122
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                            "created_at" => "2026-04-10 13:58:26"
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                        }
                        1 => App\Models\Term {#1127
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
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                            "created_at" => "2026-04-10 13:58:26"
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                        2 => App\Models\Term {#1128
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
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                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1140}
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1141}
                    "field_under_the_edition_degree" => null
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                    "field_allowed" => "Рекомендовано Министерством образования и науки Республики Казахстан"
                    "field_reserve_field" => null
                    "field_link_to_source" => null
                    "field_tasks_count" => "1063"
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                    "field_default_folder" => "/algebra_10/baspasy-u19/"
                    "field_isbn" => "978-601-01-3958-9"
                    "field_cover" => array:1 [
                      0 => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
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                    "field_cover_alts" => array:1 [
                      0 => ""
                    ]
                    "field_covers" => array:1 [
                      0 => array:4 [
                        "path" => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
                        "alt" => ""
                        "width" => "1940"
                        "height" => "2895"
                      ]
                    ]
                    "field_popular_book" => null
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1142}
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1143}
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                    "field_url" => "/10-klass/algebra/baspasy-pak-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1145}
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                    "field_metatags_description" => null
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                    "breadcrumbs" => array:3 [
                      "class" => 381
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                  #attributeCastCache: []
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                  #dispatchesEvents: []
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                    0 => "*"
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            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1146
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        }
        1 => App\Models\Branch {#1147
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
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            "created_at" => "2026-04-10 13:58:26"
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              #items: array:1 [
                0 => App\Models\Term {#1149
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
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                  #attributes: array:7 [
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                    "created_at" => "2026-04-10 13:58:26"
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                    "updated_at" => null
                    "name" => "Глава"
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                    "field_page_check_not_needed" => null
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                    0 => "*"
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            "field_page_start" => "76"
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                0 => App\Models\Book {#1118}
              ]
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            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1150
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                0 => App\Models\Branch {#1034}
              ]
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          ]
        }
        2 => App\Models\Branch {#1153
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                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
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                  #attributes: array:7 [
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                    "created_at" => "2026-04-10 13:58:26"
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                0 => App\Models\Branch {#1164
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      ]
      #escapeWhenCastingToString: false
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    "content" => Illuminate\Database\Eloquent\Collection {#1070
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            "created_at" => "2026-04-10 13:58:26"
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                0 => App\Models\Edition {#1096
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_content_type" => "free"
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                    "field_solution_author" => "Автор"
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                      #escapeWhenCastingToString: false
                    }
                    "field_process_formula" => "katex"
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              ]
              #escapeWhenCastingToString: false
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            "task" => array:2 [
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            "text" => "<p><strong>15. (3)</strong> На рисунке 6 изображен график производной $f'(x)$ функции $f(x)$, $D(f):(-5;6)$.</p><p><strong>а) Укажите критические точки функции $f(x)$.</strong></p><svg width="400" height="200" viewBox="-6 -2.5 13 5"><!-- Grid Lines --><!-- Horizontal lines --><line x1="-5" y1="-2" x2="6" y2="-2" stroke="lightgray" stroke-width="0.05" /><line x1="-5" y1="-1" x2="6" y2="-1" stroke="lightgray" stroke-width="0.05" /><line x1="-5" y1="1" x2="6" y2="1" stroke="lightgray" stroke-width="0.05" /><line x1="-5" y1="2" x2="6" y2="2" stroke="lightgray" stroke-width="0.05" /><!-- Vertical lines --><line x1="-4" y1="-2" x2="-4" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="-3" y1="-2" x2="-3" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="-2" y1="-2" x2="-2" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="-1" y1="-2" x2="-1" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="1" y1="-2" x2="1" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="2" y1="-2" x2="2" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="3" y1="-2" x2="3" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="4" y1="-2" x2="4" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="5" y1="-2" x2="5" y2="2" stroke="lightgray" stroke-width="0.05" /><!-- Axes --><line x1="-5.5" y1="0" x2="6.5" y2="0" stroke="black" stroke-width="0.1" /><!-- x-axis --><line x1="0" y1="-2.2" x2="0" y2="2.2" stroke="black" stroke-width="0.1" /><!-- y-axis --><!-- Axis arrows --><polyline points="6.5,0 6.3,0.1 6.3,-0.1" stroke="black" stroke-width="0.1" fill="black" /><polyline points="0,2.2 0.1,2 -0.1,2" stroke="black" stroke-width="0.1" fill="black" /><!-- Axis labels --><text x="0.2" y="-0.2" font-family="serif" font-size="0.3" fill="black">O</text><text x="6.2" y="0.3" font-family="serif" font-size="0.3" fill="black">x</text><text x="0.3" y="2" font-family="serif" font-size="0.3" fill="black">y</text><text x="-5.2" y="-0.3" font-family="serif" font-size="0.3" fill="black">-5</text><text x="5.8" y="-0.3" font-family="serif" font-size="0.3" fill="black">6</text><!-- Function f'(x) path --><path d="M -5 -1.2 C -4.2 0.5, -3.8 0.5, -3 0 C -2.2 -0.5, -1.8 -1.8, -1 -1.8 C -0.2 -1.8, 1.2 0.5, 2 0.5 C 2.8 0.5, 4 0, 4.5 0 C 5 0, 5.5 -0.8, 6 -1.2" fill="none" stroke="purple" stroke-width="0.15" /><!-- Open circles at endpoints --><circle cx="-5" cy="-1.2" r="0.1" fill="none" stroke="purple" stroke-width="0.1" /><circle cx="6" cy="-1.2" r="0.1" fill="none" stroke="purple" stroke-width="0.1" /></svg><p>Рис. 6</p><p><strong>б) Укажите интервалы монотонности функции $f(x)$.</strong></p><p><strong>в) Укажите точки локальных экстремумов функции $f(x)$.</strong></p>"
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            "text" => "<p><strong>15. (3)</strong> На рисунке 6 изображен график производной $f'(x)$ функции $f(x)$, $D(f):(-5;6)$.</p><p><strong>а) Укажите критические точки функции $f(x)$.</strong></p><svg width="400" height="200" viewBox="-6 -2.5 13 5"><!-- Grid Lines --><!-- Horizontal lines --><line x1="-5" y1="-2" x2="6" y2="-2" stroke="lightgray" stroke-width="0.05" /><line x1="-5" y1="-1" x2="6" y2="-1" stroke="lightgray" stroke-width="0.05" /><line x1="-5" y1="1" x2="6" y2="1" stroke="lightgray" stroke-width="0.05" /><line x1="-5" y1="2" x2="6" y2="2" stroke="lightgray" stroke-width="0.05" /><!-- Vertical lines --><line x1="-4" y1="-2" x2="-4" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="-3" y1="-2" x2="-3" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="-2" y1="-2" x2="-2" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="-1" y1="-2" x2="-1" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="1" y1="-2" x2="1" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="2" y1="-2" x2="2" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="3" y1="-2" x2="3" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="4" y1="-2" x2="4" y2="2" stroke="lightgray" stroke-width="0.05" /><line x1="5" y1="-2" x2="5" y2="2" stroke="lightgray" stroke-width="0.05" /><!-- Axes --><line x1="-5.5" y1="0" x2="6.5" y2="0" stroke="black" stroke-width="0.1" /><!-- x-axis --><line x1="0" y1="-2.2" x2="0" y2="2.2" stroke="black" stroke-width="0.1" /><!-- y-axis --><!-- Axis arrows --><polyline points="6.5,0 6.3,0.1 6.3,-0.1" stroke="black" stroke-width="0.1" fill="black" /><polyline points="0,2.2 0.1,2 -0.1,2" stroke="black" stroke-width="0.1" fill="black" /><!-- Axis labels --><text x="0.2" y="-0.2" font-family="serif" font-size="0.3" fill="black">O</text><text x="6.2" y="0.3" font-family="serif" font-size="0.3" fill="black">x</text><text x="0.3" y="2" font-family="serif" font-size="0.3" fill="black">y</text><text x="-5.2" y="-0.3" font-family="serif" font-size="0.3" fill="black">-5</text><text x="5.8" y="-0.3" font-family="serif" font-size="0.3" fill="black">6</text><!-- Function f'(x) path --><path d="M -5 -1.2 C -4.2 0.5, -3.8 0.5, -3 0 C -2.2 -0.5, -1.8 -1.8, -1 -1.8 C -0.2 -1.8, 1.2 0.5, 2 0.5 C 2.8 0.5, 4 0, 4.5 0 C 5 0, 5.5 -0.8, 6 -1.2" fill="none" stroke="purple" stroke-width="0.15" /><!-- Open circles at endpoints --><circle cx="-5" cy="-1.2" r="0.1" fill="none" stroke="purple" stroke-width="0.1" /><circle cx="6" cy="-1.2" r="0.1" fill="none" stroke="purple" stroke-width="0.1" /></svg><p>Рис. 6</p><p><strong>б) Укажите интервалы монотонности функции $f(x)$.</strong></p><p><strong>в) Укажите точки локальных экстремумов функции $f(x)$.</strong></p>"
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            "text" => "<p><strong>а) Укажите критические точки функции f(x).</strong></p><p>Критическими точками функции $f(x)$ называются внутренние точки области определения, в которых ее производная $f'(x)$ равна нулю или не существует. На изображении представлен график производной $f'(x)$, которая определена на всем интервале $D(f):(-5;6)$. Следовательно, критическими точками будут те значения $x$, для которых выполняется условие $f'(x) = 0$.</p><p>На графике видно, что производная $f'(x)$ пересекает ось абсцисс (то есть равна нулю) в точках: $x = -4$, $x = -1$, $x = 2$ и $x = 5$.</p><p><strong>Ответ:</strong> критические точки функции $f(x)$ это $x = -4$, $x = -1$, $x = 2$, $x = 5$.</p><p><strong>б) Укажите интервалы монотонности функции f(x).</strong></p><p>Интервалы монотонности функции $f(x)$ определяются знаком её производной $f'(x)$.</p><p>1. Функция $f(x)$ возрастает на тех интервалах, где её производная положительна ($f'(x) > 0$). По графику видно, что $f'(x)$ больше нуля (график расположен выше оси $Ox$) на интервалах $(-4; -1)$ и $(2; 5)$.</p><p>2. Функция $f(x)$ убывает на тех интервалах, где её производная отрицательна ($f'(x) < 0$). По графику видно, что $f'(x)$ меньше нуля (график расположен ниже оси $Ox$) на интервалах $(-5; -4)$, $(-1; 2)$ и $(5; 6)$.</p><p><strong>Ответ:</strong> функция возрастает на интервалах $(-4; -1)$ и $(2; 5)$; функция убывает на интервалах $(-5; -4)$, $(-1; 2)$ и $(5; 6)$.</p><p><strong>в) Укажите точки локальных экстремумов функции f(x).</strong></p><p>Точки локальных экстремумов (максимумов и минимумов) функции $f(x)$ находятся среди её критических точек. Для определения типа экстремума необходимо проанализировать, как меняется знак производной $f'(x)$ при переходе через критическую точку.</p><p>1. Точка локального минимума: производная $f'(x)$ меняет знак с минуса на плюс. Такое изменение знака происходит в точках $x = -4$ (знак меняется с $-$ на $+$) и $x = 2$ (знак меняется с $-$ на $+$).</p><p>2. Точка локального максимума: производная $f'(x)$ меняет знак с плюса на минус. Такое изменение знака происходит в точках $x = -1$ (знак меняется с $+$ на $-$) и $x = 5$ (знак меняется с $+$ на $-$).</p><p><strong>Ответ:</strong> точки локального минимума: $x = -4$, $x = 2$; точки локального максимума: $x = -1$, $x = 5$.</p>"
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            "text" => "<p><strong>а) Укажите критические точки функции f(x).</strong></p><p>Критическими точками функции $f(x)$ называются внутренние точки области определения, в которых ее производная $f'(x)$ равна нулю или не существует. На изображении представлен график производной $f'(x)$, которая определена на всем интервале $D(f):(-5;6)$. Следовательно, критическими точками будут те значения $x$, для которых выполняется условие $f'(x) = 0$.</p><p>На графике видно, что производная $f'(x)$ пересекает ось абсцисс (то есть равна нулю) в точках: $x = -4$, $x = -1$, $x = 2$ и $x = 5$.</p><p><strong>Ответ:</strong> критические точки функции $f(x)$ это $x = -4$, $x = -1$, $x = 2$, $x = 5$.</p><p><strong>б) Укажите интервалы монотонности функции f(x).</strong></p><p>Интервалы монотонности функции $f(x)$ определяются знаком её производной $f'(x)$.</p><p>1. Функция $f(x)$ возрастает на тех интервалах, где её производная положительна ($f'(x) > 0$). По графику видно, что $f'(x)$ больше нуля (график расположен выше оси $Ox$) на интервалах $(-4; -1)$ и $(2; 5)$.</p><p>2. Функция $f(x)$ убывает на тех интервалах, где её производная отрицательна ($f'(x) < 0$). По графику видно, что $f'(x)$ меньше нуля (график расположен ниже оси $Ox$) на интервалах $(-5; -4)$, $(-1; 2)$ и $(5; 6)$.</p><p><strong>Ответ:</strong> функция возрастает на интервалах $(-4; -1)$ и $(2; 5)$; функция убывает на интервалах $(-5; -4)$, $(-1; 2)$ и $(5; 6)$.</p><p><strong>в) Укажите точки локальных экстремумов функции f(x).</strong></p><p>Точки локальных экстремумов (максимумов и минимумов) функции $f(x)$ находятся среди её критических точек. Для определения типа экстремума необходимо проанализировать, как меняется знак производной $f'(x)$ при переходе через критическую точку.</p><p>1. Точка локального минимума: производная $f'(x)$ меняет знак с минуса на плюс. Такое изменение знака происходит в точках $x = -4$ (знак меняется с $-$ на $+$) и $x = 2$ (знак меняется с $-$ на $+$).</p><p>2. Точка локального максимума: производная $f'(x)$ меняет знак с плюса на минус. Такое изменение знака происходит в точках $x = -1$ (знак меняется с $+$ на $-$) и $x = 5$ (знак меняется с $+$ на $-$).</p><p><strong>Ответ:</strong> точки локального минимума: $x = -4$, $x = 2$; точки локального максимума: $x = -1$, $x = 5$.</p>"
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№15 (с. 92)
Условие. №15 (с. 92)
скриншот условия
Алгебра, 10 класс Учебник, авторы: Пак Олег Владимирович, Ардакулы Дархан, Ескендирова Елена Викторовна, издательство Алматыкітап баспасы, Алматы, 2019, Часть 2, страница 92, номер 15, Условие

15. (3) На рисунке 6 изображен график производной $f'(x)$ функции $f(x)$, $D(f):(-5;6)$.

а) Укажите критические точки функции $f(x)$.

Oxy-56

Рис. 6

б) Укажите интервалы монотонности функции $f(x)$.

в) Укажите точки локальных экстремумов функции $f(x)$.

Решение 2 (rus). №15 (с. 92)

а) Укажите критические точки функции f(x).

Критическими точками функции $f(x)$ называются внутренние точки области определения, в которых ее производная $f'(x)$ равна нулю или не существует. На изображении представлен график производной $f'(x)$, которая определена на всем интервале $D(f):(-5;6)$. Следовательно, критическими точками будут те значения $x$, для которых выполняется условие $f'(x) = 0$.

На графике видно, что производная $f'(x)$ пересекает ось абсцисс (то есть равна нулю) в точках: $x = -4$, $x = -1$, $x = 2$ и $x = 5$.

Ответ: критические точки функции $f(x)$ это $x = -4$, $x = -1$, $x = 2$, $x = 5$.

б) Укажите интервалы монотонности функции f(x).

Интервалы монотонности функции $f(x)$ определяются знаком её производной $f'(x)$.

1. Функция $f(x)$ возрастает на тех интервалах, где её производная положительна ($f'(x) > 0$). По графику видно, что $f'(x)$ больше нуля (график расположен выше оси $Ox$) на интервалах $(-4; -1)$ и $(2; 5)$.

2. Функция $f(x)$ убывает на тех интервалах, где её производная отрицательна ($f'(x) < 0$). По графику видно, что $f'(x)$ меньше нуля (график расположен ниже оси $Ox$) на интервалах $(-5; -4)$, $(-1; 2)$ и $(5; 6)$.

Ответ: функция возрастает на интервалах $(-4; -1)$ и $(2; 5)$; функция убывает на интервалах $(-5; -4)$, $(-1; 2)$ и $(5; 6)$.

в) Укажите точки локальных экстремумов функции f(x).

Точки локальных экстремумов (максимумов и минимумов) функции $f(x)$ находятся среди её критических точек. Для определения типа экстремума необходимо проанализировать, как меняется знак производной $f'(x)$ при переходе через критическую точку.

1. Точка локального минимума: производная $f'(x)$ меняет знак с минуса на плюс. Такое изменение знака происходит в точках $x = -4$ (знак меняется с $-$ на $+$) и $x = 2$ (знак меняется с $-$ на $+$).

2. Точка локального максимума: производная $f'(x)$ меняет знак с плюса на минус. Такое изменение знака происходит в точках $x = -1$ (знак меняется с $+$ на $-$) и $x = 5$ (знак меняется с $+$ на $-$).

Ответ: точки локального минимума: $x = -4$, $x = 2$; точки локального максимума: $x = -1$, $x = 5$.

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