Q. 144.7( 3 Votes )

Using the method

Answer :

We have three points given A(4, 8), b(5, 12), C(9, 28)

To Prove: Given Points are collinear


Proof: A(4, 8), B(5, 12), C(9, 28)


The formula used: The slope of the line =


The slope of line AB =


AB =


The slope of line BC =


BC = = 4


The slope of line CA =



Here, AB = BC = CA


Hence, The Given points are collinear.

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