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Collinearity of three points can be tested using their:
ASlopes
BWeights
CColours
DVolumes
Answer & Solution
Correct answer: A. Slopes
1. Two of the points fix one slope, another pair fixes a second.
2. If a single line holds all three, those slopes agree.
3. So collinearity is tested with slopes.
_Source: NCERT Class 11 Mathematics, Chapter 10, Straight Lines._
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