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Popular >

extreme f(x)=2x^2-7x-9

Solution

extreme points

f (x) = 2 x^{2} - 7 x - 9

Solution

Minimum (\frac{7}{4}, - \frac{121}{8})

Solution steps

f^{'} (x) = 4 x - 7

Find intervals:

Decreasing

: - \infty < x < \frac{7}{4},

Increasing

: \frac{7}{4} < x < \infty

Plug

x = \frac{7}{4}

into

2 x^{2} - 7 x - 9 : - \frac{121}{8}

Minimum (\frac{7}{4}, - \frac{121}{8})

Graph

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Frequently Asked Questions (FAQ)

What is the extreme f(x)=2x^2-7x-9 ?
The extreme f(x)=2x^2-7x-9 is Minimum(7/4 ,-121/8)