Dilations

Question 1

What is a Dilation?

Answer 1

A dilation is a transformation that changes the size of a figure but not the shape. The image and the preimage of a figure under a dilation are similar.

Question 2

What is the Center of Dilation?

Answer 2

The point where the lines of every vertex meet.

Question 3

What is the Formula for Dilations in the Coordinate Plane?

Answer 3

If P(x, y) is the preimage of a point under a dilation centered at the origin with scale factor k, then the image of the point is P(kx, ky).