Precalculus (6th Edition) Blitzer

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

Chapter 1 - Mid-Chapter Check Point: 3

Answer

Function domain is $[-2, 2)$. range is $[0, 3]$.

Work Step by Step

All vertical lines will pass through the graph at a maximum of one point. Thus, the graph represents a function. The x-values are from $-2$ to $2$ (but not including 2 itself as a hole was used to plot the point). Thus, the domain is $[-2, 2)$. The y-values are from $0$ to $3$. Thus, the range is $[0, 3]$.
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