Question

A line segment with endpoints Q negative nine comma thirty-six and R forty five comma eighteen is dilated with the origin as the center of dilation. The resulting endpoints are Q prime negative one comma four and R prime five comma two. What is the scale factor?

A. one-ninth

B. one-third

C. 3

D. 9

Answer 1

@iGreen

Answer 2

Find out the ratio of distances QR and Q'R'. That will be the scale factor.

Answer 3

can u just tell me?

Answer 4

\(AB = \sqrt{(x-x')^2 + (y-y')^2}\)

Answer 5

I got 9.

Answer 6

i dont get it

Answer 7

ok thank u!