Which of the following is a nonlinear function?

Question

A.
Input 1 2 3 4 5
Output 4 10 20 34 52

B.
Input 1 2 3 4 5
Output 6 9 12 15 18

C.
Input 1 2 3 4 5
Output 5 10 15 20 25

D.
Input 1 2 3 4 5
Output 12 15 18 21 24

Answer 1

A.
Input 1 2 3 4 5
Output 4 10 20 34 52

This is a nonlinear function because the pattern of the output values does not follow a consistent rate of change.