Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 2 - Mid-Chapter Check Point: 2

Answer

domain: $\left\{0, 2, 3\right\}$ range: $\left\{1, 4\right\}$ The given relation is a function.

Work Step by Step

The domain is the set that contains all of the first coordinates. Thus, the domain is $\left\{0, 2, 3\right\}$. The range is the set that contains all of the second coordinates. Thus, the range is $\left\{1, 4\right\}$. The requirement for a function is that each input (part of the domain) has exactly one output (part of the range). Every first coordinate is paired with exactly one output. Therefore, the given relation is a function.
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