Topic 3&4 q. 21

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•
Mathematics
•
9th Grade
•
Hard
+3
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1.
FLASHCARD QUESTION
Front
What is a transformation in geometry?
Back
A transformation in geometry is an operation that moves or changes a shape in some way to produce a new shape. Common transformations include translations, rotations, reflections, and dilations.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
2.
FLASHCARD QUESTION
Front
Define reflection in geometry.
Back
Reflection is a transformation that flips a figure over a line, creating a mirror image of the original figure.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
3.
FLASHCARD QUESTION
Front
What is the x-axis in a coordinate plane?
Back
The x-axis is the horizontal axis in a coordinate plane, where the y-coordinate is zero.
Tags
CCSS.5.G.A.1
4.
FLASHCARD QUESTION
Front
What is the y-axis in a coordinate plane?
Back
The y-axis is the vertical axis in a coordinate plane, where the x-coordinate is zero.
Tags
CCSS.5.G.A.1
5.
FLASHCARD QUESTION
Front
What does it mean to reflect across the y-axis?
Back
To reflect across the y-axis means to flip a figure over the y-axis, changing the sign of the x-coordinates of the points in the figure.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
6.
FLASHCARD QUESTION
Front
What does it mean to reflect across the x-axis?
Back
To reflect across the x-axis means to flip a figure over the x-axis, changing the sign of the y-coordinates of the points in the figure.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
7.
FLASHCARD QUESTION
Front
What is the line y = x?
Back
The line y = x is a diagonal line in the coordinate plane where the y-coordinate is equal to the x-coordinate for all points on the line.
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