Question

Triangle J′K′L′ shown on the grid below is a dilation of triangle JKL using the origin as the center of dilation:

Two triangles are drawn on a grid. First triangle has vertices J 6 and 12, K 9 and 6, L 12 and 9. Image triangle has vertices J prime 2 and 4, K prime 3 and 2, L prime 4 and 3.

Which scale factor was used to create triangle J′K′L′?

1 by 3
4
3
1 BY 4

mod note: Please do not give away the answer directly. Low-effort and/or plagiarized answers will be removed.

Answer 1

One can see on the grid the dilation of angle JKL to J'K'L'. Hope it helps.