
Dilations and Translations
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a translation in geometry?
Back
A translation is a transformation that moves every point of a figure the same distance in a specified direction.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
2.
FLASHCARD QUESTION
Front
What does the notation (x+a, y+b) represent in translations?
Back
It represents a translation of a point (x, y) by 'a' units horizontally and 'b' units vertically.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
3.
FLASHCARD QUESTION
Front
If a point (x, y) is translated to (x-2, y+9), what direction and distance is it moved?
Back
It is moved 2 units to the left and 9 units up.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
4.
FLASHCARD QUESTION
Front
What is the scale factor in a dilation?
Back
The scale factor is the ratio of the distance from the center of dilation to a point on the image and the distance from the center of dilation to the corresponding point on the original figure.
Tags
CCSS.8.G.A.3
5.
FLASHCARD QUESTION
Front
How do you find the new coordinates of a point after a translation?
Back
Add the translation values to the original coordinates: (x + a, y + b).
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
6.
FLASHCARD QUESTION
Front
What happens to the size of a figure during a dilation with a scale factor less than 1?
Back
The figure shrinks.
Tags
CCSS.8.G.A.3
7.
FLASHCARD QUESTION
Front
What is the effect of a dilation with a scale factor greater than 1?
Back
The figure enlarges.
Tags
CCSS.8.G.A.3
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