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

Question

anonymous · Answer

Q(3, -2)
R(-4, 6)

Q'(27, -18)
R'(-36, 54)

one way you can do this is to find "how many times" bigger is Q'R' than QR.

anonymous · Answer

Looks to me like every coordinate was multiplied by nine.  Think that might be the scale factor?

anonymous · Answer

Wait I dont get it?