# Thread: Average Rate of Change for Exponential Functions?

1. ## Average Rate of Change for Exponential Functions?

EX) x(2^x) as x goes from 1 to 3?

2. Originally Posted by Incursion
EX) x(2^x) as x goes from 1 to 3?

For $f(x)= x\times 2^x$ find $\frac{f(3)-f(1)}{3-1}$