Wednesday, September 1, 2010

Graphing y=a/x-h/+k (Absolute Value Functions)

When you want to graph a equations like y=a/x-h/+k you have to follow this rules:

1. The vertex on your graph will be (H,K)  

2. a tells you wether the V is opened up or down
    If its negative its opened down, if its positive its opened up


3. the h moves the V to the right or to  the left
    If the h is positive it moves to the left, if its negative it moves to the right


4. k moves the V up or down


This is how it looks like

If y is greater you shade above, when its less you have to shade below and use a dotted line!

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