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Popular Functions >

extreme f(x)=x^2-8x+21

Solution

extreme points

f (x) = x^{2} - 8 x + 21

Solution

Minimum (4, 5)

Solution steps

f^{'} (x) = 2 x - 8

Find intervals:

Decreasing

: - \infty < x < 4,

Increasing

: 4 < x < \infty

Plug

x = 4

into

x^{2} - 8 x + 21 : 5

Minimum (4, 5)

Graph

Popular Examples

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midpoint (2,-1),(3,6)

Frequently Asked Questions (FAQ)

What is the extreme f(x)=x^2-8x+21 ?
The extreme f(x)=x^2-8x+21 is Minimum(4,5)