College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 2, Functions - Section 2.3 - Getting Information from the Graph of a Function - 2.3 Exercises: 18

Answer

(a) Refer to the image below for the graph. (b) Domain: $(-\infty, +\infty)$ Range: $(-\infty, 2]$

Work Step by Step

(a) Use a graphing calculator to graph the given function. Refer to the image below for the graph. (b) The domain is the set that contains all the x-values covered by the graph/equation. The range is the set that contains all the y-values covered by the graph/equation. The graph covers all the real numbers so the domain is $(-\infty, +\infty)$. The graph covers the y-values from $2$ and below. Thus, the range is $(-\infty, 2]$.
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