College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter 2 - Section 2.3 - Functions - 2.3 Exercises: 77

Answer

(a) Increasing: $(4,\infty)$ (b) Decreasing: $(-\infty,-1)$ (c) Constant: $(-1,4)$

Work Step by Step

We see from the graph that $f(x)$ is increasing when $x$ is greater than $4$, decreasing when $x$ is less than $-1$ and constant between $-1$ and $4$.
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