Question

A triangle has the vertices A(–7, 8), B(1, –7), and C(7, 6).

After a dilation, the vertices of the image are A'(–28, 32), B'(4, –28), and C'(28, 24).

What is the scale factor of the dilation?

Answer 1

4

Explanation:

The scale factor is 4.

Each vertices is multiplied by 4 to get the new points.

Answer 2

4

Explanation:

A (-7, 8)

-7*4 = -28

8*4 = 32