Dilation and Scale factor
Flashcard
•
Mathematics
•
8th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is dilation in geometry?
Back
Dilation is a transformation that alters the size of a figure but keeps its shape, using a center point and a scale factor.
Tags
CCSS.8.G.A.3
2.
FLASHCARD QUESTION
Front
What is a scale factor?
Back
A scale factor is a number that scales, or multiplies, the dimensions of a figure during a dilation.
Tags
CCSS.8.G.A.3
3.
FLASHCARD QUESTION
Front
How do you find the image of a point after dilation?
Back
To find the image of a point after dilation, multiply the coordinates of the point by the scale factor.
Tags
CCSS.8.G.A.3
4.
FLASHCARD QUESTION
Front
What happens to the coordinates of a point (x, y) under a dilation with a scale factor of k?
Back
The new coordinates will be (kx, ky).
Tags
CCSS.8.G.A.3
5.
FLASHCARD QUESTION
Front
If the scale factor is greater than 1, what type of transformation occurs?
Back
If the scale factor is greater than 1, the transformation is an enlargement.
Tags
CCSS.8.G.A.3
6.
FLASHCARD QUESTION
Front
If the scale factor is between 0 and 1, what type of transformation occurs?
Back
If the scale factor is between 0 and 1, the transformation is a reduction.
Tags
CCSS.8.G.A.3
7.
FLASHCARD QUESTION
Front
What is the image of the point B (4,9) under a dilation with a scale factor of 2?
Back
B' (8, 18).
Tags
CCSS.8.G.A.3
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