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: 23

Answer

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

Work Step by Step

The graph contains x values for all real numbers, extending infinitely to both the left and right sides of the graph, so the domain is from negative to positive infinity. The graph contains all y values from -infinity to 3, 3 included, but the graph never goes above y = 3, so the range is from - infinity to 3
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