Answer
All real numbers except $3$.
Work Step by Step
The denominator cannot be $0$.
Note that the denominator becomes zero when $x=3$.
Therefore, the domain of the given function is the set of all real numbers except $3$.
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 4 - Polynomial and Rational Functions - 4.2 Properties of Rational Functions - 4.2 Assess Your Understanding - Page 197: 15
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