Question

Under a dilation, triangle XYZ where X(6, 3), Y(-2, 4), and Z(10, -2) becomes triangle X’Y’Z’ where X’(3, 1.5), Y’(-1, 2), and Z’(5, -1). What is the scale factor for this dilation?

Answer 1

The scale factor is 1/2 because all of the points in the image are half of what they were before.
The rule for a dilation is z(x, y) which is more simple (x(z), y(z)). Get what I'm saying?