Question

i need help on this question...let f(X)=8x+2, find the average rate of change from 5 to 8

Answer 1

sorry the denominator was wrong.
\[\frac{f(8)-f(5)}{8-5}\]

Answer 2

\[f(8)=64+2=66\]
\[f(5)=25+2=27\]
\[8-5=3\]
\[\frac{66-27}{3}=\frac{41}{3}\]

Answer 3

so the answer is 43/3?

Answer 4

no i messed up on the last answer. is should be
\[\frac{66-27}{3}=\frac{39}{3}=13\]

Answer 5

ok, thanks alot, can i ask you another question?