Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 5 - Section 5.2 - Sum and Difference Formulas - Exercise Set - Page 672: 109


a. $(-4,\infty)$ b. $(-\infty,-1]$ c. $y=-1$ d. $(-2,3)$ e. $(-4,-2)$ f. $(3,\infty)$ g. $-1$

Work Step by Step

Based on the given graph, we have: a. the domain of f: $(-4,\infty)$ b. the range of f: $(-\infty,-1]$ c. the y-intercept: $y=-1$ d. interval(s) where f is constant: $(-2,3)$ e. interval(s) where f is increasing: $(-4,-2)$ f. interval(s) where f is decreasing: $(3,\infty)$ g. $f(-2)=-1$
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