Answer:
Option A
Step-by-step explanation:
To find out if a function is nonlinear, you can graph the points in the table. If it forms a straight line, then it is linear. If it does not, then it is nonlinear.
1) Let's graph three points from Option A's table. Graph (1,3), (2,9), and (3,27) and see if you can draw a completely straight line passing through them. When you do, you will have something similar to the picture below. The line they form is not straight, therefore Option A is a nonlinear function.
