Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 11 - Additional Topics - 11.7 - Relations and Functions - Problem Set 11.7: 5

Answer

Domain: 4,9 Range: -3,-2,2,3 It is not a function.

Work Step by Step

The domain consists of all of the first numbers in the ordered pair. The range consists of all of the second numbers in the ordered pair. In order to determine if it is a function, make sure that all domain values match exactly one range value. (In other words, if a value in the domain is repeated, be sure that the same range value is given both times.)
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