Exploring Dilations in the Coordinate Plane
Explore dilations on the graph below.
First: Spend 10 minutes playing with the graph below.
Things you can do.
- You can drag the vertices of the pre-image (A, B, C) around.
- You can move the "Center" around.
- You can change the Scale Factor of the image by using the slider.
- You can enable/disable the scaled image using the "Image" check box.
- You can enable/disable the scale lines using the "Movement of Points" check box.
Dilations
Question 1
How does the scale factor influence the location of the pre-image and corresponding image points with regards to the center?
Question 2
How does the scale factor and center influence the length of the pre-image sides and their corresponding image sides.
How does the scale factor and center influence the location of the image with regards to the pre-image?