alleryAshima, Bharti and Camella sit at (3, 1), (6, 4) and (8, 6). Are they in a line?
ANo, they form a square
BNo, they form a circle
CNo, they form a cube
DYes, they are collinear
Answer & Solution
Correct answer: D. Yes, they are collinear
1. The first two distances are 3 root 2 and 2 root 2.
2. Their sum equals the third, 5 root 2.
3. So the points are collinear.
_Source: syllabus Mathematics, Chapter 7, Coordinate Geometry._
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