Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 4 - An Introduction to Functions - 4-2 Patterns and Linear Functions - Lesson Check - Page 243: 4


Referring to Exercise 1 A. A function B. A function C. Not a function

Work Step by Step

The sets A and B are functions because each x value has only one y value and they both pass the vertical line test. Set C is not a function because one x value has more than one y value and thus the function fails the vertical line test and so is not a function.
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