Answer: (0, −1, 6).
- A (0, −1, 6)
- B (0, 1, 6)
- C (6, 5, 0)
- D (3, 2, 3)
Correct answer: A. (0, −1, 6)
Explanation: For external division replace n by −n: x = (1·4 − 2·2)/(1 − 2) = 0, y = (3 − 2)/(−1) = −1, z = (2 − 8)/(−1) = 6.
Concept context
Coordinate axes and planes in space, octants, distance between two points, and the section formula
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