Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 7 - Functions and Graphs - Review Exercises: Chapter 7 - Page 496: 16


$ a.\quad$ Not a function $ b.\quad$ none

Work Step by Step

$ a.\quad$ Apply the vertical line test: If it is possible for a vertical line to cross a graph more than once, then the graph is not the graph of a function. The graph fails the test, as the vertical line x=1 crosses it in two points. Not a function. $b.$ - does not apply - not a function.
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