Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 8 - Section 8.4 - Interval Notation, Finding Domains and Ranges from Graphs, and Graphing Piecewise-Defined Functions - Exercise Set - Page 604: 15


Domain: (-infinity, infinity) Range: (-infinity, -3]U[3, infinity)

Work Step by Step

The graph extends infinitely in both directions and contains all x values, so the domain is -infinity to infinity The graph extends from y= -3 downward and from y=3 upward, but does not have any y values in between, meaning that the range is from -infinity to -3 and 3 to infinity, -3 and 3 included
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