What is the line of reflection across the x-axis?
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Mathematics
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8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The line of reflection across the x-axis is a horizontal line where each point (x, y) is reflected to (x, -y).
2.
FLASHCARD QUESTION
Front
How do you dilate a point by a scale factor of 1/2?
Back
To dilate a point (x, y) by a scale factor of 1/2, multiply both coordinates by 1/2, resulting in (x/2, y/2).
3.
FLASHCARD QUESTION
Front
Back
4.
FLASHCARD QUESTION
Front
What is a scale factor in dilation?
Back
A scale factor is a number that scales, or multiplies, the dimensions of a shape. For example, a scale factor of 2 doubles the size.
5.
FLASHCARD QUESTION
Front
Back
6.
FLASHCARD QUESTION
Front
What happens to a point when reflected across the y-axis?
Back
When a point (x, y) is reflected across the y-axis, it becomes (-x, y).
7.
FLASHCARD QUESTION
Front
What is the formula for dilating a point (x, y) by a scale factor k?
Back
The formula is (kx, ky).
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