#### Answer

Not linear.

#### Work Step by Step

We are given:
$f(x)=x(4-x)$
$f(x)=4x-x^{2}$
Since the function does not have the form $f(x)=ax+b$, it is not linear.

Published by
Brooks Cole

ISBN 10:
1305115546

ISBN 13:
978-1-30511-554-5

Not linear.

You can help us out by revising, improving and updating this answer.

Update this answerAfter you claim an answer you’ll have **24 hours** to send in a draft. An editor
will review the submission and either publish your submission or provide feedback.