#### Answer

$f$ is a linear function

#### Work Step by Step

A linear function can be expressed in the form $f(x)=mx+b$ where $m$ and $b$ are constants. Hence, $f$ is a linear function and $g$ is not.

Published by
Pearson

ISBN 10:
0-32184-874-8

ISBN 13:
978-0-32184-874-1

$f$ is a linear function

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