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Coolmath Algebra
Inverse Functions Lesson 1 - What Are They and What Do They Do? (page 2 of 3)
---- This algebra lesson explains the concept of inverse functions

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Now available: Coolmath Algebra books! Part 1, Part 2 and Part 3 covering the Algebra you need from Algebra 1 through Precalculus Algebra (Beginning Algebra through College Algebra)

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Let's do another one:

Think of a number -- make it positive...

Now, square it...  Then, take the square root of that.  What do you get?

The number you started with!

Check it out:

4 -> ( )^2 -> 16 -> square root( ) -> 4
 

So, these guys are inverse functions:

f( x ) = x^2

g( x ) = square root( x )

Continued on the next page

 The printing and distribution and/or downloading of these lessons is strictly prohibited.
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