➢ Common Core Standard
HSG.SRT.A.1 Verify experimentally the properties of dilations given by a center and a scale factor:
a. A dilation takes a line not passing through the center of the dilation to a parallel line, and leaves a line passing through the center unchanged.
b. The dilation of a line segment is longer or shorter in the ratio given by the scale factor.
➢ Learning Targets
What you will learn: Dilations have specific effects on lines and line segments.
How you will know you’ve learned it:
• You can predict the slope of the image of a line or a line segment, after dilation.
• You can predict the length of a line segment, after dilation.
• You can justify your prediction using the definition of a dilation with a given center and scale factor.
