Dilations

So far, we have just looked at rigid transformations. Now let’s think about one that is not: a dilation changes a shape’s size by making it larger or smaller.

All dilations have a center and a scale factor. The center is the point of reference for the dilation and scale factor tells us how much the figure stretches or shrinks.

If the scale factor is between 0 and 1, the image is than the original. If the scale factor is larger than 1, the image is than the original.