Question 2:
In each of the following find the value of ‘k’, for which the points are collinear.
(i) (7, − 2), (5, 1), (3, − k) (ii) (8, 1), (k, − 4), (2, − 5)
Answer:
(i) For collinear points, area of triangle formed by them is zero.
Therefore, for points (7, −2) (5, 1), and (3, k), area = 0
(ii) For collinear points, area of triangle formed by them is zero.
Therefore, for points (8, 1), (k, −4), and (2, −5), area = 0
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