Question

x 12 15 18 21
y -2 5 12 19
is the relationship linear, exponential, or neither?
choose 1 answer:
a linear
b exponential
c neither

Explanation:

Step1: Check x differences

$15-12=3$, $18-15=3$, $21-18=3$

Step2: Check y differences

$5-(-2)=7$, $12-5=7$, $19-12=7$

Step3: Classify relationship

Linear relations have constant y differences for constant x differences.

Answer:

A. Linear