Algebra 1: Common Core (15th Edition)

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

Chapter 3 - Solving Inequalities - 3-3 Solving Inequalities Using Multiplication or Division - Lesson Check - Page 181: 4



Work Step by Step

We need to get the variable alone. In order to cancel out multiplication, we use division, so we divide both sides of the inequality by -3. However, because we divide by a negative, we must flip the inequality sign. Thus, we obtain that $ x \leq -3$. This means that the graph should be shaded for all values less than or equal to -3, making C the correct graph.
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