Geometry Honors TNReady Flashcard 4
Flashcard
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the result of reflecting a point (x, y) across the y-axis?
Back
The image of the point will be (-x, y).
2.
FLASHCARD QUESTION
Front
What are the coordinates of a point after reflecting it across the x-axis?
Back
The image of the point (x, y) will be (x, -y).
3.
FLASHCARD QUESTION
Front
What is a similarity transformation in geometry?
Back
A similarity transformation is a transformation that alters the size of a figure but preserves its shape, such as dilation, rotation, or reflection.
4.
FLASHCARD QUESTION
Front
What is the effect of a 180° rotation about the origin on a point (x, y)?
Back
The image of the point will be (-x, -y).
5.
FLASHCARD QUESTION
Front
How do you perform a translation of a point (x, y) by a vector (a, b)?
Back
Add the vector to the point: the new coordinates will be (x + a, y + b).
6.
FLASHCARD QUESTION
Front
What is the image of point A(9, -4) after a translation of (x, y) → (x - 10, y + 2)?
Back
A(-1, -2).
7.
FLASHCARD QUESTION
Front
What is the definition of a reflection in geometry?
Back
A reflection is a transformation that flips a figure over a line, creating a mirror image.
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