Answer :

We have three points given A(16, – 18), B(3, – 6), C(– 10, 6)

To Prove: Given Points are collinear


Proof: AB[(16, – 18),(3, – 6)], BC[(3, – 6),(– 10, 6)], CA[(– 10, 6),(16, – 18)]


Formula used: The slope of the line =


The slope of line AB =


AB =


The slope of line BC =


BC =


The slope of line CA =


CA =


Here, AB = BC = CA


Hence, The Given points are collinear.


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