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Inverse functions

An inverse reverses a bijection; domain restrictions can make a function invertible.

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More concepts to explore

  • Bijections

    A bijection is both injective and surjective and has a two-sided inverse.

  • Exponential functions

    An exponential with positive base other than one models multiplicative change.

  • Function composition

    Composition applies one function after another where the output fits the next domain.

  • Functions

    A function assigns exactly one output to each input in its domain; its domain matters when comparing expressions.

  • Absolute value

    Absolute value measures distance from zero on the real line.

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Elementary Algebra and Functions

Explore numbers and expressions; equations and inequalities; functions and growth. Concepts and connections are available independently of video coverage.

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