College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 2 - Functions and Graphs - Exercise Set 2.1 - Page 228: 127

Answer

The relation includes the points (2,1) and (4,1)

Work Step by Step

These two points form a relation that is a function. If you switch the x and y values of the coordinates it is no longer a function because the domain will have more than one range value.
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