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?

1.5

2

2.5

3

Answer 1

The answer is 2.5. The origin will remain at (0,0) no matter what. But if you multiply 4 by 2.5, you get 10. And if you multiply 6 by 2.5, you get 15. So the scale factor is 2.5.

Answer 2

the aswer is 2.5 because its bigger