Question

Which scale factors produce a contraction under a dilation of the original image? Select all that apply.

A) -2
B) -1/2
C) 3
D) 2/3

Answer 1

2/3

Explanation:

You can't have a negative scale factor, so you can automatically eliminate options A and B. A scale factor is simply a number that can be multiplied by an original side to get a new side (a number larger than 1 means it's getting bigger)

Contraction is when a dilation gets smaller, so 2/3 is the only option which is smaller than 1, but also not negative.