Question

Triangle ABCis transformed with the center of dilation at the origin.

Pre-image: △ABC with vertices A(−3, 4), B(−1, 12), C(4, −2)

Image: △A′B′C′with vertices A′(−0.6, 0.8), B′(−0.2, 2.4), C′(0.8, −0.4)

What is the scale factor of the dilation that maps the pre-image to the image?
Enter your answer in the box.

Answer 1

take any point on the triangle and any point on the image: for now let's take point A(-3,4) A`(-0.6

Explanation:

sf =3/4

scale factor=5