Question

determine if the points (1,5),(2,3),(-2,-11) are Collinear?
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Answer 1

Step-by-step explanation:

A(1,5),B(2,3)andC(−2,−11)

Now , AB= √(1^2) +(2^2) = √5

BC= √(4^2)+ (14^2) = √212

CA= √(1^2) + (16^2) = √257

As, CA > BC > AB

If points A,B and C are collinear then AB+BC =CA

But √5+ √212≠ √257

So, they are not collinear

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