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Finding an Inverse Function InformallyFind the inverse function of f(x) = 4x. Then verify that both f( f −1(x)) and f −1( f(x))are equal to the identity function.

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter2: Functions

Section2.8: one-to-one Functions And Their Inverses

Problem 70E

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Question

Finding an Inverse Function Informally
Find the inverse function of f(x) = 4x. Then verify that both f( f −1(x)) and f −1( f(x))
are equal to the identity function.

Expression, rule, or law that gives the relationship between an independent variable and dependent variable. Some important types of functions are injective function, surjective function, polynomial function, and inverse function.

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