Functions Modeling Change: A Preparation for Calculus, 5th Edition

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: 3


If $x\lt-1$, the function is increasing. If $x\gt-1$, the function is decreasing.

Work Step by Step

If $x\lt-1$, then as $x$ increases, $y$ increases, hence the function is increasing. If $x\gt-1$, then as $x$ increases, $y$ decreases, hence the function is decreasing.
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