Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 1 - Functions and Their Graphs - Section 1.1 Functions - 1.1 Assess Your Understanding - Page 54: 47

Answer

The domain is the set of all real numbers.

Work Step by Step

The function does not have any special mathematical function inside (fraction, square root), only subtraction and multiplication. The function is defined for all real numbers. Therefore the domain of the given function is the set of all real numbers.
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