Question

What is the scale factor in the dilation if the coordinates of A' are (-7, 6) and the coordinates of C’ are (-4.3)?

a. 1/3
b. 1/2
c. 2
d. 3

Answer 1

a. 1/3

Explanation:

For dilation about the origin, the ratio of any pair of corresponding coordinates will give you the scale factor:

A'y/Ay = 6/18 = 1/3

The scale factor is 1/3.