Question

What is the minimum and maximum values of
F(x)= -(x-4)^2-23

Answer 1

find f'(x)
set f'(x)=0
solve for x.

those are critical numbers.

and what is the interval, can you tell me?

Answer 2

I mean the function's interval... is it bound or not?

Answer 3

@SolomonZelman i got it anyways thanks for your help

Answer 4

Sure, you welcome...