similar circles 1

1. Drag the sliders up and down to make the pre-image and image circles different sizes. How does the scale factor change as you move the sliders?

2. Use the dilate button to enlarge or reduce the pre-image with the given scale factor. Describe the dilated pre-image.

Use the translate button to slide the dilated pre-image over to the image. Does the new circle map onto the image?

Explain how all circles are similar.