Intermediate Algebra (6th Edition)

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

Chapter 2 - Section 2.7 - Absolute Value Inequalities - Exercise Set - Page 105: 9

Answer

Interval Notation : $[-5,5]$ Graph:

Work Step by Step

$|x| +7 \leq 12$ To isolate the absolute value expression, add $-7$ to both sides. $|x| +7 -7 \leq 12-7 $ $|x| \leq 5$ By the property, $|X| \leq a = −a\leq x \leq a$ the absolute value inequality becomes $-5 \leq x \leq 5$ Interval Notation : $[-5,5]$
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