What happens when a dilation has a scale factor greater than one?
Math 8: 2.1-4 Review, Dilations

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Mathematics
•
7th - 8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The dilation is an enlargement.
2.
FLASHCARD QUESTION
Front
If AB = 12 and AC = 3, what is the scale factor when B is dilated with a center at A?
Back
The scale factor is ¼.
3.
FLASHCARD QUESTION
Front
What is the image of the point B (4,9) under a dilation with center at the origin and a scale factor of 2?
Back
B' (8, 18)
4.
FLASHCARD QUESTION
Front
If two figures are similar, what can be said about their corresponding sides?
Back
The corresponding sides are proportional.
5.
FLASHCARD QUESTION
Front
To dilate point B from a center of P with a scale factor of ½, how do you move from P?
Back
Go up 2 and right 1.
6.
FLASHCARD QUESTION
Front
What is a dilation in geometry?
Back
A transformation that changes the size of a figure but not its shape.
7.
FLASHCARD QUESTION
Front
What is the scale factor in a dilation?
Back
The ratio of the distance from the center of dilation to a point on the image to the distance from the center of dilation to the corresponding point on the original figure.
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