# Dilations Part 3: What Do You Notice?

- Author:
- Tim Brzezinski

## In this app below, points A and B are dilated about point O. Their images are A' and B', respectively. Interact with this app for a few minutes. Then, answer the questions that follow.

Move A to (1,2) and move B to (-3,4). Dilate A and B about O with a scale factor of 2. What are the coordinates (x,y) of their images (A' and B')?

Move A to (1,2) and move B to (-3,4). Dilate A and B about O with a scale factor of 3. What are the coordinates (x,y) of their images (A' and B')?

Move A to (1,2) and move B to (-3,4). Dilate A and B about O with a scale factor of 0.5. What are the coordinates (x,y) of their images (A' and B')?

Move A to (1,2) and move B to (-3,4). Dilate A and B about O with a scale factor of -1. What are the coordinates (x,y) of their images (A' and B')?

Move A to (1,2) and move B to (-3,4). Dilate A and B about O with a scale factor of -2. What are the coordinates (x,y) of their images (A' and B')?

Move A to (1,2) and move B to (-3,4). Dilate A and B about O with a scale factor of -0.5. What are the coordinates (x,y) of their images (A' and B')?

Suppose a point is dilated about the origin by a scale factor . What are the coordinates of its image ?