Reflections
Flashcard
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a reflection in geometry?
Back
A reflection is a transformation that flips a shape over a line, creating a mirror image.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
2.
FLASHCARD QUESTION
Front
What is the line of reflection?
Back
The line of reflection is the line over which a shape is flipped to create its reflection.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
3.
FLASHCARD QUESTION
Front
How do you reflect 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).
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
4.
FLASHCARD QUESTION
Front
How do you reflect a point over the x-axis?
Back
To reflect a point (x, y) over the x-axis, change the sign of the y-coordinate to (x, -y).
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
5.
FLASHCARD QUESTION
Front
What is the reflection of the point (3, 4) over the y-axis?
Back
The reflection is (-3, 4).
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
6.
FLASHCARD QUESTION
Front
What is the reflection of the point (-2, -5) over the x-axis?
Back
The reflection is (-2, 5).
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
7.
FLASHCARD QUESTION
Front
If a shape is reflected over the x-axis, how does its orientation change?
Back
The shape's orientation is flipped vertically.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
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