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1. |
Rotate P(2, -9) 90° counterclockwise about the origin and identify P'. |
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A. |
(2, -9) |
B. |
(-9, 2) |
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C. |
(-2, 9) |
D. |
(9, 2) |
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Hint |
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2. |
A rotation of 180° counterclockwise or 180° clockwise would be ______. |
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A. |
the same |
B. |
impossible |
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C. |
None of these is correct. |
D. |
different |
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Hint |
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3. |
Determine whether the pair of figures represents a rotation of 90°, 180°, or a reflection over the x-axis or y-axis. |
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A. |
180° rotation |
B. |
90° counterclockwise rotation |
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C. |
reflection over the y-axis |
D. |
reflection over the x-axis |
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Hint |
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4. |
The point P(-5, -10) is rotated 90° counterclockwise about the origin. What are the coordinates of P'? |
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A. |
(10, -5) |
B. |
(5, -10) |
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C. |
(-5, 10) |
D. |
(10, 5) |
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Hint |
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5. |
Triangle XYZ has vertices X(5, -2), Y(8, -2) and Z(8, -5). What has occurred to produce X'(-5, 2), Y'(-8, 2) and Z'(-8, 5)? |
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A. |
180? rotation about the origin |
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B. |
Reflection about the y-axis. |
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C. |
90? counterclockwise rotation about the origin |
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D. |
Reflection about the x-axis |
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Hint |
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