Terms and Definitions
A transformation that changes the size but not the shape of a geometric figure
Dilation
Preimage: (2, 2) Image: (5, 5)
2.5
Preimage: (7, 2) Scale factor: 10
(70, 20)
The algebraic rule (x, y) -> (2.5x, 2.5x) is what type of transformation?
enlargement
Preimage: (7, 8) Image: (56, 64)
8
Preimage: (13, 8) Scale factor: 2
(26, 16)
Describes how much larger or smaller the image of a dilation is than the pre image
scale factor
Preimage: (6, 3) Image: (2, 1)
1/2
Preimage: (27, 37) Scale factor: 2
(54, 74)
A dilation is a transformation that enlarges or ________________ an image.
reduces
Preimage: (46, 37) Image: (23, 18.5)
1/2
Preimage: (28, 83) Scale factor: 5
(140, 415)
A dilation is a ________ that changes the ________ but not the shape of a geometric figure.
transformation, size
Pre image: (5,10) Image: 1(10,20)
2
Preimage: (27, 9) Scale factor: 3 1/3
(90, 30)