Answer
The function never goes up or down.
Work Step by Step
Recall, a constant function is a horizontal line, which never goes up or down. Thus, the range of a constant function must be one number, for the function never changes in y-value.
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 7 - Functions and Graphs - 7.3 Graphs of Functions - 7.3 Exercise Set - Page 468: 75
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