Precalculus (6th Edition) Blitzer

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 - Exercise Set: 3

Answer

$(-\infty, 4) \cup (4, +\infty)$

Work Step by Step

The denominator cannot be zero since division of zero is undefined. The number 4 makes the denominator zero. Thus, the domain of the given function is the set of all real numbers except $4$. In interval notation, the domain is: $(-\infty, 4) \cup (4, +\infty)$
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