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: 3

Answer

Interval Notation: [0.3, infinity) Number Line: Closed circle on 0.3, entire right side of 0.3 on the number line is shaded

Work Step by Step

Because x >= 0.3, 0.3 is included in the number line. Therefore, the solution will include all values that are to the right of 0.3 on the number line, including 0.3. The interval notation uses closed brackets on 0.3 and open on infinity because 0.3 is included while infinity is not.
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