Verifying that Functions are Inverses

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Taught by mrbrianmclogan
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Lesson Summary:

In this lesson, we learn how to verify that two functions are inverses of each other. By finding the composition of the function and its inverse, we can prove that they are indeed inverses. This involves plugging one function into the other, and simplifying until we see that both compositions equal x. It's important to understand the distinction between f of x and f inverse of x, and to know how to simplify square roots in order to verify that functions are inverses.

Lesson Description:

Verifying that two functions are inverses

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Questions answered by this video:
  • How can I check to see if two funtions are inverses?
  • Staff Review

    • Currently 4.0/5 Stars.
    The insructor demonstrates how to verify that two functions are inverses of each other. He does this by showing that the composition of f(x) and it's inverse will equal x.