easy question

[jcdfjasn]

find the indicated quantities for f(x)= 2x^2A. the average rate of change of f(x) if x changes from 1 to 4.

 

[DrPhil]

find the indicated quantities for f(x)= 2x^2A. the average rate of change of f(x) if x changes from 1 to 4.(triangle)

The change from x=1 to x=4 is f(4) - f(1). The average is:



\(\displaystyle \dfrac{\triangle f(x)}{\triangle x} = \dfrac{f(4) - f(1)}{4 - 1} = \). . .