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Popular >

extreme f(x)=-5x^2+8x-4

Solution

extreme points

f (x) = - 5 x^{2} + 8 x - 4

Solution

Maximum (\frac{4}{5}, - \frac{4}{5})

Solution steps

f^{'} (x) = - 10 x + 8

Find intervals:

Increasing

: - \infty < x < \frac{4}{5},

Decreasing

: \frac{4}{5} < x < \infty

Plug

x = \frac{4}{5}

into

- 5 x^{2} + 8 x - 4 : - \frac{4}{5}

Maximum (\frac{4}{5}, - \frac{4}{5})

Popular Examples

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\frac{x + 1}{x + 7}

range of x^3-x^4 range

x^{3} - x^{4}

parallel y=-7x-51 parallel

y = - 7 x - 51

extreme f(x)=4x^3-48x-3 extreme points

f (x) = 4 x^{3} - 48 x - 3

range of 6x^2+12x range

6 x^{2} + 12 x

Frequently Asked Questions (FAQ)

What is the extreme f(x)=-5x^2+8x-4 ?
The extreme f(x)=-5x^2+8x-4 is Maximum(4/5 ,-4/5)