Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 3 - Solving Inequalities - 3-6 Compound Inequalities - Lesson Check - Page 204: 6


The rightmost symbol should be ) rather than ].

Work Step by Step

The infinity symbol indicates the solution set continues on without an endpoint. Infinity itself is not part of the solution set, so it should be followed by a parenthesis rather than a bracket. The bracket indicates inclusion in the solution set.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.