Inverse of a Rational Function

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Taught by mrbrianmclogan
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Lesson Summary:

In this lesson, the instructor teaches how to graph and find the inverse of a rational function. The first step is to switch the domain and range of the function to obtain the inverse. Then, the instructor explains how to graph the inverse function by creating a table of values or using symmetry about the xy line. Finally, the instructor shows how to confirm that the inverse function is the same as the original function.

Lesson Description:

Graphing and finding the inverse of a rational function

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Questions answered by this video:
  • What is the inverse of f(x)=2/x ?
  • If f(x)=1/x, what is f(0)equal to?
  • The graph y=1/x is symmetrical about which line?