Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 3 - Section 3.7 - Graphing Linear Inequalities - Exercise Set - Page 188: 68

Answer

It helps us confirm that our answer is correct.

Work Step by Step

We test a point on either side of the inequality to check our solution. Since we can make mistakes, we check to see that points in the shaded area are solutions, while points not in the shaded area are not solutions.
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