Precalculus (10th Edition)

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

Chapter 2 - Functions and Their Graphs - 2.2 The Graph of a Function - 2.2 Assess Your Understanding - Page 64: 3

Answer

vertical

Work Step by Step

For every $x$ there must be a unique $y$, hence the answer is vertical. (This is the Vertical Line Test.)
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