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

Do you know how to find the length of a line, given the coordinates of it's end points?

anonymous · Answer

yes i do

anonymous · Answer

Alright, do that with both lines. Divide the length of the second line (Q' R') by the length of the first line (Q R). That'll be your scale factor.