Answer
$(-\infty, +\infty)$
Work Step by Step
The domain of any linear function is the set of all real numbers.
In interval notation, the set of all real numbers is $(-\infty, +\infty)$.
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 1 - Section 1.7 - Combinations of Functions; Composite Functions - Concept and Vocabulary Check - Page 257: 7
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