Terms, Definitions, T/F, Fill in the Blank
Scale Factor
New image
Enlargement & reduction
Review
100
A transformation that changes the size but not the shape of a geometric figure
What is dilation?
100
Preimage: (2, 2) Image: (5, 5)
What is 2.5?
100
Preimage: (7, 2) Scale factor: 10
What is (70, 20)
100

Preimage: (7, 8) k= 3

(21,24)

100

type of transformation that takes each point in a figure and mirror it over a line.


What is a reflection?

200
The center of the figure
What is center of dilation?
200
Preimage: (7, 8) Image: (56, 64)
What is 8?
200
Preimage: (3, 8) Scale factor: 5
What is (15, 40)
200

Preimage: (5, 7) (3, 6) K=6

(30,42) (18,36)

200

type of transformation that takes each point in a figure and pivots it a certain number of degrees around a given point

What is a statement that rotation?

300
Describes how much larger or smaller the image of a dilation is than the pre image
What is scale factor?
300
Preimage: (6, 3) Image: (2, 1)
What is 1/2?
300
Preimage: (27, 37) Scale factor: 2
What is (54, 74)
300

Preimage: (42, 49) K: 1/7

(6,7)

300

24 x 3/4

18

400
True or false: dilation is how large an image is after it is enlarged or reduced.
False
400
Preimage: (46, 37) Image: (23, 18.5)
What is 1/2?
400
Preimage: (28, 83) Scale factor: 5
What is (140, 415)
400

Preimage: (108, 144) (117,162) K:1/9

(12,16) (13,18)

400
Chocolate fudge overload extra large donuts are on sale for $5.99 3/4 dozen. What is the cost of one donut?
What is $0.67?
500
A dilation is a ________ that changes the ________ but not the shape of a geometric figure.
transformation, size
500
Preimage: (53.7, 35.8) Image: (161.1, 107.4)
What is 3?
500
Preimage: (222, 17) Scale factor: 34
What is (7548, 578)
500

Preimage: (180, 204) (72, 108) (240,228) K: 1/12

(15,17) (6,9) (20, 19)

500
Sadie buys 4 grams of titanium for a robotics project for $11. Quin buys 2.5 grams of the same titanium for the same robotics project for $6.25. Who gets the better deal.
Quin
M
e
n
u