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: 8

Answer

Interval Notation: [-5, -1] Number Line: Closed circles on -5 and -1, the area in between these two values on the number line is shaded

Work Step by Step

Because -5<=x<=-1, -5 and -1 are included in the number line. Therefore, the solution will include all values that are in between -5 and -1, including those two values. The interval notation uses closed brackets on -5 and -1 because these values are included in the solution.
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