5D: Dilations
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a dilation?
Back
A dilation is either an enlargement or a reduction of a figure.
2.
FLASHCARD QUESTION
Front
What happens when the scale factor is greater than one?
Back
The new figure will be an enlargement.
3.
FLASHCARD QUESTION
Front
What are the coordinates of a figure dilated by a scale factor of 2?
Back
If the original coordinates are A(2,4), B(4,6), and C(6,2), the new coordinates will be A'(4,8), B'(8,12), and C'(12,4).
4.
FLASHCARD QUESTION
Front
What does the coefficient 2 mean in the transformation (x, y) -> (2x, 2y)?
Back
The scale factor is 2, making a figure twice the original size.
5.
FLASHCARD QUESTION
Front
What is the image of the point B (-10,-6) under a dilation with center at the origin and scale factor k = 1/2?
Back
The image of the point B under the dilation is (-5,-3).
6.
FLASHCARD QUESTION
Front
Define scale factor in the context of dilations.
Back
The scale factor is a number that describes how much a figure is enlarged or reduced during a dilation.
7.
FLASHCARD QUESTION
Front
If a figure is dilated by a scale factor of 1, what happens to the figure?
Back
The figure remains the same size; it is neither enlarged nor reduced.
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