1. 9-6 Dilations
Vocab:
Dilation: A transformation that changes the size of the shape
Enlargement: A dilation that makes a shape bigger (scale factor greater than 1)
Reduction: A dilation that makes a shape smaller (scale factor smaller than 1, but greater than 0)

2. Determining Scale Factor
Scale Factor = dilation length/original length
r means scale factor in this book
Ex 1: Find the scale factor if BA is 4 and B’A’ is 12

3. Graphing Dilations Ex 2: Graph A(–2, –2), B(–1, 2), C(2, 1); r = 2
Ex 3: Graph A(0, 0), B(3, 3), C(6, 3), D(6, –3); r = 1/3

4. Classwork/Homework
P even not 20