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Popular Functions >

extreme f(x)=9-8x-4x^2

Solution

extreme points

f (x) = 9 - 8 x - 4 x^{2}

Solution

Maximum (- 1, 13)

Solution steps

f^{'} (x) = - 8 x - 8

Find intervals:

Increasing

: - \infty < x < - 1,

Decreasing

: - 1 < x < \infty

Plug

x = - 1

into

9 - 8 x - 4 x^{2} : 13

Maximum (- 1, 13)

Graph

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Frequently Asked Questions (FAQ)

What is the extreme f(x)=9-8x-4x^2 ?
The extreme f(x)=9-8x-4x^2 is Maximum(-1,13)