Precalculus (10th Edition)

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

Chapter 4 - Polynomial and Rational Functions - Chapter Review - Cumulative Review - Page 245: 7


Not a function.

Work Step by Step

A relation is a function if for all $x$ values there is exactly one corresponding $y$ value. Hence here, because for $x=3$, there are both $y=6$ and $y=8$, it is not a function.
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