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: 16

Answer

Interval Notation: $(-∞,-4]∪[4,∞)$ Graph:

Work Step by Step

$|y| \geq 4$ By the absolute value inequality property, $|X| \geq a = X \leq -a $ or $X \geq a$ $|y| \geq 4$ is equivalent to $y \leq -4 $ or $y \geq 4$ Interval Notation: $(-∞,-4]∪[4,∞)$
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