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 - Page 215: 20

Answer

(a) Refer to the image below for the graph. (b) Domain: $[-2, +\infty)$ Range: $[0, +\infty)$

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 the x-values from $-2$ and above so the domain is $[-2 +\infty)$. The graph covers the y-values from $0$ and above. Thus, the range is $[0, +\infty)$.
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