Question

When you have two shapes to compare on a coordinate plane, you can determine the scale factor, knowing that the transformation was a dilation. Generate instructions you would give another student to determine the scale factor.

Answer 1

I recommend to move both shapes, one of the points, to the origin, so that they are similar, one just looks larger than the other, but they are overlapping.
Then, I would tell them to write down every coordinate, and compare, and find out the scale factor.