Answer
decreasing over the range of real numbers
Work Step by Step
This function is decreasing over the range of real numbers $(-\infty,\infty)$ because for all $a\lt b$, $f(a)\geq f(b)$.
Functions Modeling Change: A Preparation for Calculus, 5th Edition
by Connally, Eric; Hughes-Hallett, Deborah; Gleason, Andrew M.; Cheifetz, Phil C.
Published by
Wiley
ISBN 10:
1118583191
ISBN 13:
978-1-11858-319-7
Chapter 1 - Linear Functions and Change - 1.2 Rate of Change - Exercises and Problems for Section 1.2 - Exercises and Problems - Page 15: 4
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