Dilations Flashcards
1
Q
What is a Dilation?
A
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.
2
Q
What is the Center of Dilation?
A
The point where the lines of every vertex meet.
3
Q
What is the Formula for Dilations in the Coordinate Plane?
A
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).
