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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. |
(-2, -1) |
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C. |
(1, -2) |
D. |
(2, 1) |
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Hint |
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2. |
Identify the transformation. |
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A. |
Reflection |
B. |
Rotation |
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C. |
Translation |
D. |
Dilation |
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Hint |
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3. |
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´(-3, -5), R´(-7, -3), S´(-2, -1) |
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C. |
Q´(5, -3), R´(3, -7), S´(1, -2) |
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D. |
Q´(-5, -3), R´(-3, -7), S´(-1, -2) |
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Hint |
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4. |
What is the rule where the angle of rotation is 90° counterclockwise, and the center is (0, 0)? |
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A. |
(x, y)  (-x, -y) |
B. |
(x, y) (-y, x) |
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C. |
(x, y) (-y, -x) |
D. |
(x, y) (-x, y) |
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Hint |
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5. |
Which is the image of the figure shown when it is tuned 180° clockwise about the center point P? |
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A. |
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B. |
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C. |
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D. |
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Hint |
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