Question

Find the average rate of change of f(x) = x^3 - 3x +3 from -9 to -5

Answer 1

Find the f(-5)
Find the f(-9)
Then do this calculation:
\[\frac{f(-5)-f(-9)}{-5-(-9)}\]

Answer 2

so just -5 - -9/-5 -9?

Answer 3

What is the function f?

Answer 4

-14?

Answer 5

f(x) = x^3 - 3x +3 That is the function f.

Answer 6

Replace x with -5

Answer 7

What did you get?

Answer 8

63

Answer 9

Which is prob wrong

Answer 10

\[(-5)^3-3(-5)+3=-125+15+3=-110+3=-107\]

Answer 11

Now you find the f(-9)

Answer 12

Yea you just did a lot that I dont understand ;(

Answer 13

Sorry math is my weak sub

Answer 14

Well, I would like to help you but I don't know where to start. do you know how to raise a number to a power?