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Absolute Value Functions

Now, let's look at an old friend:

y = x

 graph of y = x

What does an absolute value do to him?

y = | x |

graph of y = x with the negative y values highlighted

graph of y = | x |

It takes these negative heights...

and makes them positive!

Hey!  It's V Guy!
That's where he came from!
(Go tell your cat.)