Question:

How do i find the value of x that maximizes the value of y in the following relationship?

by  |  earlier

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y - (-x^3) + 57x^2 - 315x - 2000

thanks for any help

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  1. using derivativ

    1st derivative equat with zero and find x

    in 2nd derivative use it

    if it is non negetive then y is minimum

    if it is negetive then y is maximum

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