#### Answer

The function is one-to-one
$r^{-1} = \{(2,1),(4,3),(6,5),(7,6)\}$

#### Work Step by Step

The function has no repeated outputs, therefore it is one-to-one. To create the inverse function, switch the x and y coordinates of each pair.

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

The function is one-to-one
$r^{-1} = \{(2,1),(4,3),(6,5),(7,6)\}$

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