Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 9 - Review: 20

Answer

One-to-one

Work Step by Step

We know that a function will be one-to-one if each x-value of the function corresponds to only one y-value and each y-value corresponds to only one x-value. We can use the horizontal line test to determine if the given function is one-to-one. This function passes the horizontal line test, because we cannot place a horizontal line anywhere on the graph that would intersect the graph of the function more than once. Therefore, all x-values of this function correspond to only one y-value, and vice versa. This function is one-to-one.
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