Question

Someone mind helping me ?

Find the average rate of change of
f(x)=-x^2+3x+3 from x=2 to x=6

Answer 1

(f(6)-f(2))/(6-2)

Answer 2

do I divide those?

Answer 3

f(6)=-15; f(2)=5

Answer 4

(-15-5)/(6-2)=(-20)/(4)=-5

Answer 5

Wait what I' confused .So do I divide what you just posted?

Answer 6

no. I just worked out the problem. The answer is -5. you want to evaluate the expression
\(\Huge \frac{f(b)-f(a)}{(b-a)}\)
which in this case is
\(\Huge \frac{f(6)-f(2)}{(6-2)}\)

Answer 7

Oh okay thank you cause I spent almost ten minutes trying to solve this and the help video was just not working for me .It was confusing me more.

Answer 8

hahaha no problem :)