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: 1


Interval Notation: (-infinity, -3) Number Line: Open circle on negative -3, line on the left side of the number line

Work Step by Step

Because x < -3, -3 is not included in the number line. Therefore, the solution will include all values that are to the left of -3 on the number line, excluding -3. The interval notation uses open brackets because -3 and -infinity are not included.
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