Question

the table shows a function. is the function linear or nonlinear?
x | y
2 | 2
14 | 14
20 | 20
linear
nonlinear

Explanation:

Step1: Check x-y relationship

Observe each $(x,y)$ pair: $y=x$ for all points.

Step2: Verify linear form

The function $y=x$ fits $y=mx+b$ (here $m=1, b=0$), a linear function form.

Answer:

linear