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1. |
Find the distance between A(-2, 0, 4) and B(6, 1, 1). |
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A. |
 units |
B. |
 units |
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C. |
 units |
D. |
 units |
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Hint |
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2. |
What are the coordinates of the midpoint of the segment with endpoints C(2, -4, 6) and D(7, 2, -5)? |
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A. |
(4.5, -1, 0.5) |
B. |
(5, 6, -11) |
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C. |
(-2.5, -3, 5.5) |
D. |
(9, -2, 1) |
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Hint |
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3. |
Classify the triangle with vertices F(5, -2, 1), G(7, -6, 4), and
H(6, 0, 3). |
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A. |
isosceles |
B. |
right |
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C. |
equilateral |
D. |
acute |
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Hint |
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4. |
Find the coordinates of the center of the sphere that has a diameter with endpoints at (-2,-7,6) and (6,12,15). |
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A. |
(2,2.5,10.5) |
B. |
(2,2.5,10) |
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C. |
(4,9.5,4.5) |
D. |
(4,4.5,7) |
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Hint |
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5. |
Given the equation of a sphere  , determine the center point and the radius. |
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A. |
(6,-10,5),  |
B. |
(-2,4,5), 32 |
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C. |
(-6,10,-5), 32 |
D. |
(-3,5,-2.5,), |
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Hint |
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