1. 2.7 Use Absolute Value Functions

2. Vocabulary Absolute Value Function: f(x) = |x|
Vertex: highest or lowest point on the graph of an absolute value function.
Transformation: changes graph size, shape, position, or orientation.
Translation: is a transformation that shifts a graph horizontally and/or vertically, but does not change its size, shape, or orientation.

3. Graphing an Absolute Value Function
y = |x – h| + k
Vertex: (h,k)
Horizontal translation: h
Vertical translation: k
Slope: 1

4. Change the shape of the V:
y = a|x|
Is a vertical stretch or shrink of the V
“|a|” is less than 1, (shrink) or wide
“|a|” is greater than 1, (stretch) or narrow
“-a” turns the V down

5. Practice Problems:
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