- #1
redbird555
- 12
- 0
Homework Statement
Find the absolute maximum and absolute minimum values of the function
(x^3)+(12x^2)-27x+9
on each of the following interval
[-10,0]
The Attempt at a Solution
I got this and its saying its wrong.
y'= (3x^2)+(24x)-27
factor: 3(x^2+8x-9) so x=-9 and x=-1
y''=6x+24
I plug in -9 into there and come up with -30 as the minimum which is not correct?
Anyone have some input?
Thanks! Dan