Studying & Defining
A transformation that changes the size but not the shape of a geometric figure
What is a dilation?
Preimage: (2, 2) Image: (5, 5)
What is 2.5?
Preimage: (100, 20) Scale factor: 1/10
What is (10, 2)?
Preimage: (7, 2) Scale factor: 10
What is (70, 20)?
Earning $50 for 6 weeks
What is $300?
The center of the figure
What is the center of dilation?
Preimage: (7, 8) Image: (56, 64)
What is 8?
Preimage: (7.5, 5) Scale factor: 2/5
What is (3,2)?
Preimage: (3, 8) Scale factor: 5
What is (15, 40)?
3 times 18
What is 54?
The number that describes how much a final image is larger or smaller the original image
What is a scale factor?
Preimage: (6, 3) Image: (2, 1)
What is 1/2?
Preimage: (3, 12) Scale factor: 1/3
What is (1,4)?
Preimage: (27, 37) Scale factor: 2
What is (54, 74)?
-9 times 12
What is -108?
When the final image of a dilation is larger than the original image
What is an enlargement?
Preimage: (46, 37) Image: (23, 18.5)
What is 1/2?
Preimage: (473, 99) Scale factor: 1/11
What is (43,9)?
Preimage: (28, 83) Scale factor: 5
What is (140, 415)?
14 times -20
What is -280?
When the final image of a dilation is smaller than the original image
What is a reduction?
Preimage: (53.7, 35.8) Image: (161.1, 107.4)
What is 3?
Preimage: (312, 520) Scale factor: 1/52
What is (6,10)?
Preimage: (222, 17) Scale factor: 34
What is (7548, 578)?
-19 times -11 times -2
What is -418?