Answer
See below.
Work Step by Step
The domain of a function is the largest set of numbers for which the value of the function is a real number. E.g. with a fractional function we must exclude values that make the denominator $0$.
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 2 - Section 2.3 - The Algebra of Functions - Exercise Set - Page 134: 67
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