Question

If the points (h, k), (x1, yı) and (x2, y2) are collinear, show that:
(h – k) (y2-y1) = (k - y1) (x2 – x1)​

Answer 1

Answer:

Hint : If the points are collinear there area will be zero . Use formula of area of triangle in Cartesian coordinates .

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