CBSE 10th Class past year question paper
Year 2019
SET 1, Code Number – 30/2/1
Question number – 8 (a)
Deepak BoraNewbie
Find a relation between x and y if the points A(x, y), B(– 4, 6) and C(– 2, 3) are collinear
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A, B, C are collinear
⇒ ar. (∆ABC) = 0
∴ 1/2 [x(6 – 3) – 4(3 – y) – 2(y – 6)] = 0
⇒ 3x + 2y = 0