Question

The dashed triangle is a dilation image of the solid triangle with the center at the origin. Is the dilation an enlargement or a reduction? Find the scale factor of the dilation.

Answer 1

it's a reduction, becouse it's smaller...:)
the scale is 1/3. To see that take for ex. down right point of the big triangle (-6,-6). The correspondent point of the small triangle is (-2,-2), so 3 times samller....:)