Dilations and other transformations
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Standards-aligned
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6 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.
Tags
CCSS.8.G.A.3
2.
FLASHCARD QUESTION
Front
What does a scale factor of 1/2 mean in a dilation?
Back
A scale factor of 1/2 means that the image will be half the size of the original figure.
Tags
CCSS.8.G.A.3
3.
FLASHCARD QUESTION
Front
How do you write the algebraic notation for a dilation with a scale factor of 1/2?
Back
(x, y) → (1/2x, 1/2y)
Tags
CCSS.8.G.A.3
4.
FLASHCARD QUESTION
Front
How do you write the algebraic notation for a dilation with a scale factor of 3?
Back
(x, y) → (3x, 3y)
Tags
CCSS.8.G.A.3
5.
FLASHCARD QUESTION
Front
What is the scale factor if the original triangle is reduced to half its size?
Back
1/2
Tags
CCSS.7.G.A.1
6.
FLASHCARD QUESTION
Front
If point B is at (3, -8), what are the coordinates after a dilation by a scale factor of 1/2?
Back
(1.5, -4)
Tags
CCSS.8.G.A.3
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