Question

Use the following graph of the function f(x) = 2x^3 + x^2 - 3x + 1

What is the average rate of change from x = -1 to x = 1

A) -1

B) 1

C) 2

D) 4

Answer 1

Average change = change in y / change in x! That easy!

change in y= (1-3)=-2
change in x= 1-(-1) = 2

Average change= -1! So, (A)