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1. |
Which three points are collinear? |
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A. |
J(-3, -11), K(2, 4), L(0, -2) |
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B. |
A(4, 1), B(-2, 3), C(6, 8) |
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C. |
G(2, 6), H(4, -3), I(-1, -7) |
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D. |
D(0, 5), E(1, -2), F(-3, 1) |
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Hint |
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2. |
 QRS has vertices Q(3, -4), R(1, 2), and S(-5, 0). Which is the equation of the line through the midpoints of  and  ? |
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A. |
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B. |
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C. |
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D. |
y = 2x + 4 |
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Hint |
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3. |
The points Q(-2,-4), R(1,2) and S(3,1) form a triangle. Find the altitude from the point Q to |
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B. |
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C. |
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D. |
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Hint |
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4. |
The vertices for  are T(-4,4), U(0,10) and V(4,4). X and Y are the midpoints of  and  , respectively. Find the coordinates of the point of intersection of the medians  and  |
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A. |
(-1,5) |
B. |
(0,8) |
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C. |
(0,6) |
D. |
(1,4) |
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Hint |
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5. |
Using the points (2,5) and (10,20) find the equation of the best-fit line for the scatter plot. |
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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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