Question

When the point (-1, 3) is dialated with the center of dialation at the origin, the image of the points is (-4, 12).

What is the scale factor of this dialation?

A) -4
B) 4
C) 0.25
D) -0.25

please show your work

Answer 1

1) Find the quotient between the x coordinates
-4/-1= 4

2) Find the quotient between y coordinates

12/3= 4


The scale factor is 4.

Hope this helps!