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1. |
 has vertices A(3, 7), B(-2, 1), and C(4, -1). Suppose the triangle is rotated 180° to form  . What are the coordinates of B'? |
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A. |
(2, -1) |
B. |
(1, -2) |
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C. |
(2, 1) |
D. |
(-2, -1) |
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Hint |
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2. |
If point C (3, -2) is rotated 180° on the coordinate plane, what are the coordinates of C'? |
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A. |
(2, 3) |
B. |
(-3, 2) |
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C. |
(-3, -2) |
D. |
(-2, -3) |
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Hint |
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3. |
Identify the transformation. |
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A. |
Reflection |
B. |
Translation |
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C. |
Dilation |
D. |
Rotation |
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Hint |
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4. |
Triangle QRS has vertices Q(5, 3), R(3, 7), and S(1, 2). Find the coordinates of the image of triangle QRS after it is rotated 90° counterclockwise about the origin. |
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A. |
Q´(-3, -5), R´(-7, -3), S´(-2, -1) |
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B. |
Q´(-5, -3), R´(-3, -7), S´(-1, -2) |
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C. |
Q´(5, -3), R´(3, -7), S´(1, -2) |
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D. |
Q´(-3, 5), R´(-7, 3), S´(-2, 1) |
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Hint |
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5. |
Triangle DEF has vertices D(-6, -1), E(-4, -8), and F(-2, -5). Find the coordinates of the image of triangle DEF after it is rotated 180° about the origin. |
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A. |
D´(1, -6), E´(8, -4), F´(5, -2) |
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B. |
D´(-1, -6), E´(-8, -4), F´(-5, -2) |
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C. |
D´(1, 6), E´(8, 4), F´(5, 2) |
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D. |
D´(6, 1), E´(4, 8), F´(2, 5) |
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Hint |
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