Dilations and Scale Factor
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Wayground Content
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9 questions
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1.
FLASHCARD QUESTION
Front
What is a dilation in geometry?
Back
A dilation is a transformation that alters the size of a figure but not its shape, using a scale factor.
2.
FLASHCARD QUESTION
Front
What is the scale factor in a dilation?
Back
The scale factor is the ratio of a length of the new figure to the corresponding length on the original figure.
3.
FLASHCARD QUESTION
Front
If the scale factor is greater than 1, what type of transformation occurs?
Back
An enlargement occurs.
4.
FLASHCARD QUESTION
Front
If the scale factor is less than 1, what type of transformation occurs?
Back
A reduction occurs.
5.
FLASHCARD QUESTION
Front
What are the coordinates of point C after a dilation of k=3/2 from the origin if C is at (6,4)?
Back
(9,6)
6.
FLASHCARD QUESTION
Front
How do you calculate the coordinates of a dilated point?
Back
Multiply each coordinate of the original point by the scale factor.
7.
FLASHCARD QUESTION
Front
What is the center of dilation?
Back
The center of dilation is the fixed point in the plane about which all points are expanded or contracted.
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