Inverse-Functions
Black = original function Green = inverse function
Notice how the inverse function is the result of reflecting the original function over y=x.
inverse will not be a function inverse will be a function
You can determine if a function is one to one (meaning the inverse of the function is also a function) by doing a horizontal line test. If a horizontal line intersects the graph of the inverse more than once, the inverse is not a function.
http://people.hofstra.edu/Stefan_Waner/RealWorld/calctopic1/inverses.html
This website provides applets and questions to reinforce the concept of inverse functions.
http://www.purplemath.com/modules/invrsfcn2.htm
This website illustrates how to graph an inverse function by reflecting it over y=x.
See this video for a step-by-step explanation of how to find the inverse of a function:
http://www.teachertube.com/view_video.php?viewkey=816dcb757df94250e7d4
Comments (1)
Molly Taylor said
at 8:24 pm on Dec 16, 2008
Laura- I can't see the notes, the graph from earlier, and the graph I just posted. Any ideas on how to fix that? Everything else is done.
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