Question

Which scale factors produce an expansion under a dilation of the original image?

Select each correct answer.

Responses

−8


−0.7


0.8
0.8

7

Answer 1

An image is expanded by a dilation when the scale factor k satisfies |k| > 1.

So the correct choices are: −8 and 7. (Both 0.8 entries and −0.7 are contractions since their absolute values are less than 1.)