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Transformations
Test Description: Rotation, Reflection, and Translation
Instructions: Answer all questions to get your test result.
1) A transformation is described by f(x, y) = (-y, x). What degree is this rotation? Hmm... you should probably check your notes.
A
Clockwise 180 and counterclockwise 180
B
Counterclockwise 90 and clockwise 270
C
Clockwise 90 and counterclockwise 270
2) A transformation is described by f(x, y) = (-y, x). What is the image of (5, 2) after performing the rotation?
A
(2, 5)
B
(-2, 5))
C
(-5, 2)
D
(5, -2)
3) A transformation is described by f(x, y) = (-y, x). What would be the preimage of (6, -2)?
A
(2, -6)
B
(-6, -2)
C
(-6, 2)
D
(-2, -6)
4) If A(3, -6) is rotated to give A (-6, -3), what is the degree of rotation?
A
Clockwise 180 and counterclockwise 180
B
Counterclockwise 90 and clockwise 270
C
none of the above
D
Clockwise 90 and counterclockwise 270
5) If A(3, -6) is rotated to give A (-6, -3), which is the rule used to make this rotation?
A
(-y, -x)
B
(y, -x)
C
(x, -y)
D
(-y, x)
6) What preimage is rotated counterclockwise 270 degrees to give (2, -9)?
A
(-2, 9)
B
(2, 9)
C
(9, 2)
D
(9, -2)
7) What is the image created after a counterclockwise rotation of 270 degrees of point (-3, 5)?
A
(3, 5)
B
(-5, -3)
C
(-3, 5)
D
(5, 3)
8) What is the image of the point (6, -3) after a 90 degrees clockwise rotation about the origin?
A
(-3, -6)
B
(3, -6)
C
(-3, 6)
D
(-6, 3)
9) What is the image of the point (-5, 10) after it has been rotated 270 degrees clockwise about the origin?
A
(10, -5)
B
(-5, -10)
C
(10, 5)
D
(-10, -5)
10) What is the image of the point (2, 4) after it has been rotated 90 degrees counterclockwise about the origin?
A
(4, 2)
B
(-2, 4)
C
(4, -2)
D
(-4, 2)
*select an answer for all questions
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