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Question

Determine whether the following points are collinear or not: A (3, 1), B (6,4) and C (8,6) [2 MARKS]


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Solution

Concept1: 1 Mark
Application : 1 Mark

Here,

AB=(63)2+(41)2=32

QR=(86)2+(64)2=22

RP=(83)2+(61)2=52

Here,

CA=AB+BC(52=32+22)

So, A, B and C are collinear points.


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