Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 3 - Linear and Quadratic Functions - 3.1 Properties of Linear Functions and Linear Models - 3.1 Assess Your Understanding - Page 126: 23


not linear

Work Step by Step

A function is linear if there is a constant rate of change in the function, which is also called the slope. Note that: $-3-(-8)=5\\ 0-(-3)=3\\ 1-0=1\\ 0-1=-1$ The difference of consecutive $y$-values is not constant, hence the function is not linear.
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