Question

The table shows a function. Is the function linear or nonlinear?

x y
13 11
14 13
15 19

Answer 1

9514 1404 393

Answer:

nonlinear

Explanation:

If the function is linear, evenly-spaced x-values will correspond to evenly-spaced y-values.

Here, the x-values all differ by 1. The y-values differ by 2 and 6, so the function is nonlinear.