Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 2 - 2.3 - Analyzing Graphs of Functions - 2.3 Exercises - Page 194: 12

Answer

not a function

Work Step by Step

Use the vertical line test. Any vertical line should cross the graph only once. The vertical line x= 4 crosses the graph twice and hence it is not a function.
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