Answer: (7/2, 9/2, 11/2).
- A (5/2, 7/2, 9/2)
- B (3, 4, 5)
- C (10/3, 13/3, 16/3)
- D (7/2, 9/2, 11/2)
Correct answer: D. (7/2, 9/2, 11/2)
Explanation: x = (3·4 + 1·2)/4 = 14/4 = 7/2, and similarly y = 18/4 = 9/2, z = 22/4 = 11/2.
Concept context
Coordinate axes and planes in space, octants, distance between two points, and the section formula
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