Question

A triangle with vertices at A(0,0),B(0,4),and C(6,0) is dilated to yield a triangle with vertices at A'(0,0),B'(0,10), and C'(15,0). The origin is the center of dilation. What is the scale factor of the dilation.

Answer 1

Answer: 2.5

Explaination:

After graphing both triangles, the height of the first triangle was 4. I multiplied it by 2.5 and got 10 (the height of the second triangle).

Answer 2

You can use 4/10 or 6/15