Q14 of 30 Page 10

Using the method of slopes show that the points A(4, 8), b(5, 12), C(9, 28) are collinear.

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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