Translation and reflections
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Easy
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1.
FLASHCARD QUESTION
Front
What is a reflection in geometry?
Back
A reflection is a transformation that flips a figure over a line, creating a mirror image.
2.
FLASHCARD QUESTION
Front
How do you find the reflection of a point over the y-axis?
Back
To reflect a point (x, y) over the y-axis, change the sign of the x-coordinate to (-x, y).
3.
FLASHCARD QUESTION
Front
What happens to the coordinates of a point when it is reflected over the x-axis?
Back
When a point (x, y) is reflected over the x-axis, the y-coordinate changes sign, resulting in (x, -y).
4.
FLASHCARD QUESTION
Front
If a triangle has vertices A(-4, 2), B(7, 4), and C(4, 3), what are the coordinates of A' after reflection over the y-axis?
Back
A' will be (4, 2).
5.
FLASHCARD QUESTION
Front
What is the result of reflecting the point (3, -5) over the x-axis?
Back
The result is (3, 5).
6.
FLASHCARD QUESTION
Front
What type of transformation is a reflection?
Back
A reflection is a type of rigid transformation that preserves the shape and size of a figure.
7.
FLASHCARD QUESTION
Front
If a figure is reflected over the y-axis, which quadrant will it move to if it starts in quadrant 1?
Back
It will move to quadrant 2.
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