Find the net change

Question

Let f(x)=x². Find the net change in the value of f between the given inputs.

a) From 1 to 3

b) From -2 to 2

Answer 1

as x changes from 1 to 3, x^2 changes from 1 to 9 or an increase of 9-1=8

as x changes from -2 to 2, x^2 remains the same value 4. Net change = 0

-2 squared=4, 2 squared = 4. f(x)=x^2 remains the same value.