Answer: m − n, which is why m = n gives no valid point.
- A m − n, which is why m = n gives no valid point
- B m + n, exactly as in internal division
- C Always 2, independent of the ratio chosen
- D mn, the product of the two ratio terms
Correct answer: A. m − n, which is why m = n gives no valid point
Explanation: External division replaces n with −n, giving denominators m − n; when m = n this vanishes, matching the fact that the dividing point recedes to infinity.
Concept context
Coordinate axes and planes in space, octants, distance between two points, and the section formula
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