Question

The image of a triangle after it has been dilated with a center of dilation at the origin has vertices at A prime(12, –6), B prime(–24, –12), and C prime. If the pre-image of B prime, point B, has coordinates of (–18, –9) and the pre-image of C prime, point C, has coordinates of (–13.5, 18), which statements are true? Check all that apply.
The coordinates of C prime are (27, 18).
The coordinates of C prime are (–18, 24).
The scale factor is 1 and one-third.
The scale factor is 1 and one-fifth.
The scale factor is Three-fourths.
The coordinates of A are (16, –8).
The coordinates of A are (9, –4.5).

Answer 1

Which one do you think it is?

Answer 2

Ummm I asked because I don't know, and don't waste my time by using special fonts, and not even helping.

Answer 3

You can mark out A and F

Answer 4

point B is (–18, –9)
point B prime(–24, –12)

if we divide the coordinates of B prime / B, we get (-24/-18) we get the scale factor 4/3, or 1 and one third.

so that's your scale factor. but we still need to figure out the coordinates of C-prime, as well as point A

to get the coordinates of C prime ---> multiply C by (1 and 1/3)
to get the coordinates of A ---> divide A prime by (1 and 1/3)