Answer
See graph, domain $(-\infty,\infty)$, range $[-1,2]$.
Work Step by Step
1. See graph for $y=-\frac{3}{2}cos(\frac{\pi}{4}x)+\frac{1}{2}$.
2. We can identify the domain $(-\infty,\infty)$, range $[-1,2]$.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 5 - Trigonometric Functions - Section 5.4 Graphs of the Sine and Cosine Functions* - 5.4 Assess Your Understanding - Page 432: 57
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