Question

Image below. Pre-image ABCD was dilated to produce image A'B'C'D'. What is the scale factor from the pre-image to the image? Enter your answer in the box as a fraction in simplest form.

Answer 1

The scale factor is 5/2

Explanation:

To find the scale factor, divide 20/8; that simplifies into 5/2.

20÷5/2 is 20*2/5, which is equal to 8, so you know it works.

Hope that helped!!