Answer
$F$
Work Step by Step
RECALL:
$|x| = a \longrightarrow x=a \space\text{ or } \space x = -a$
Using the rule above gives:
$|x| = 7 \longrightarrow x=7 \text{ or } x = -7$
Thus, the answer is Option $F$.
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 1 - Equations and Inequalities - 1.8 Absolute Value Equations and Inequalities - 1.8 Exercises - Page 167: 1
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