College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter 2 - Section 2.4 - Linear Functions - 2.4 Exercises - Page 211: 2

Answer

H

Work Step by Step

A vertical line means that the y does not change. The only function where y is not included is $x=9$. Also, recall that lines of the form $x=c$ where $c$ is a constant are vertical lines.
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