Question

How do you find the average rate of change for the function `f(x)= 3x^2 - 2x` on the indicated intervals [1,2]?

Answer 1

The average rate can be defined as follows

`(Δf)/(Δx)=(f(b)-f(a))/(b-a)` where a=1 and b=2

So we have that

`(Δf)/(Δx)=(f(2)-f(1))/(2-1)=(8-1)/(1)=7`