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 607: 50

Answer

Please see the graph.

Work Step by Step

There are open circles at $(0,0)$ and at $(4,-2)$ since, at those x values, another piece of the function is used.
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