Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 4 - Inverse, Exponential, and Logarithmic Functions - 4.1 Inverse Functions - 4.1 Exercises - Page 406: 1



Work Step by Step

A function $f$ is a one-to-one function if different values of the domain correspond to different values of the range. ($a\neq b$ implies $f(a)\neq f(b)$) ----------------- The domain of f contains five values (years). For no two different years do we have the same number of registered cars, so the function is one-to-one
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