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Постройте график функции y= x^2-6x-7. Найдите: а) при каких значениях аргумента значения функции положительны; ,б) при каких значениях аргумента функция убывает.
Ответы 1
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Ответы с решением во вложениях.Ответ:а) f(x)>0 при x ∈ (-∞;-1)U(7;+∞)б) f(x) ↓при x ∈ (-∞;3).
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Автор:
montana - 6 лет назад
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