Предмет: Математика, автор: sndnjfks

ДАЮ 25 баллов
задайте квадратичную функцию ,наибольшее значение которой равно 4 ,абсцисса вершины параболы равна 5 ,а один из нулей функции равен 3
формула+чертёж

Ответы

Автор ответа: iosiffinikov
0

Ответ:

-4x^2+40x-84

Пошаговое объяснение:

Полусумма корней равна 5. Сумма равна 10. Значит второй корень 10-3=7

Значит парабола с точностью до множителя

(х-7)(х-3). при х=5 значение минимума равно -4.

Значит множитель равен (-4)

-4x^2+40x-84

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