Question

(Please Help!)
Find the average rate of change of f(x)=x^3-5x+2
part a.) from -3 to -2
part b.) from -1 to 3
part c.) from 3 to 8

Answer 1

Can u find f'(x)

Answer 2

No, I am extremely stuck.

Answer 3

U know how to find derivative?

Answer 4

Yes.

Answer 5

Then FIND derivative of f(x)

Answer 6

is the answer 3x^2-5?

Answer 7

f(x)=x^3-5x+2
f'(x)=3x^2-5

Answer 8

right?

Answer 9

right, not how do I find the average rate of change from point A to point B?

Answer 10

For i) {f'(-3)+f'(-2)}/2

Answer 11

Can u find that?

Answer 12

hang on, let me attempt.

Answer 13

-5f/2
?

Answer 14

Nope.

Answer 15

How u got that?

Answer 16

@megan163728 ???

Answer 17

I tried it again and got the same thing.

Answer 18

I did {f(-3)+f(-2)}/2