#### Answer

a)$5$
b)$4$

#### Work Step by Step

The definition of an inverse is $f^{-1}(y)=x$ while $f(x)=y$, so x is the answer for a and y is the answer for a and y is the answer for b

Published by
Brooks Cole

ISBN 10:
1305071751

ISBN 13:
978-1-30507-175-9

a)$5$
b)$4$

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