Answer
$[2,\infty)$
Work Step by Step
The symbol $\cup $ indicates a union of sets (of intervals).
Graph each interval and find the union
(the set containing numbers that belong to either the first, or the second, or both intervals).
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.9 - Linear Inequalities and Absolute Value Inequalities - Exercise Set - Page 137: 26
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