
Unit 4 Flashcard Practice

Flashcard
•
Mathematics
•
9th - 10th Grade
•
Hard
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9 questions
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1.
FLASHCARD QUESTION
Front
What is the pre-image of the point H' (18, 2) after a translation using the rule (x, y) -> (x + 5, y - 2)?
Back
(13, 4)
2.
FLASHCARD QUESTION
Front
What transformation occurred to line AB with coordinates A (-5, -2) and B (-3, 1) to line A'B' with coordinates A' (-1, -7) and B' (1, -4)?
Back
Translated 4 to the right and 5 down
3.
FLASHCARD QUESTION
Front
What rule represents the transformation of triangle JKL to triangle J’K’L’?
Back
(x, y) -> (x + 1, y - 2)
4.
FLASHCARD QUESTION
Front
What is the angle of rotation for a decagon?
Back
36 degrees
5.
FLASHCARD QUESTION
Front
What are the coordinates of trapezoid VTSU after reflecting over the x-axis?
Back
U' (4, 1) S' (2, 2) T' (2, 3) V' (4, 4)
6.
FLASHCARD QUESTION
Front
Define translation in geometry.
Back
A translation is a transformation that moves every point of a figure the same distance in the same direction.
7.
FLASHCARD QUESTION
Front
What is the effect of reflecting a point (x, y) over the x-axis?
Back
The reflected point is (x, -y).
8.
FLASHCARD QUESTION
Front
What is the effect of reflecting a point (x, y) over the y-axis?
Back
The reflected point is (-x, y).
9.
FLASHCARD QUESTION
Front
What is the formula for the rotation of a point (x, y) by 90 degrees counterclockwise around the origin?
Back
(x, y) -> (-y, x)
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