Question

last question

Answer 1

for the following function find
A all critical numbers
Bt he open intervals on which f is increasing and decreasing
C all relative extrema

Answer 2

3x^3+9x^@-72x

Answer 3

Derive the function!

Answer 4

9x^@+18x-72

Answer 5

divide all the terms by 9

Answer 6

1+2-8

Answer 7

x^2+2x-8

Answer 8

graph that

Answer 9

nothing happened

Answer 10

it curved up

Answer 11

Critical points are when the graph hits 0 so at x=-4,2

Answer 12

And -4 is a relative max and 2 is a relative minimum

Answer 13

so the critcal number is -4.2

Answer 14

-4 and 2

Answer 15

thank you once again i really appreciate all the help

Answer 16

No problem =)

Answer 17

one thing i got a question the say used the first derivative test to determine the open intervals . do i just do the derivatives and put it to zero to get the answer

Answer 18

You have to explain the positive negative thing

Answer 19

can you help me with this question also . this is actually the last one sorry