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Question
Plot the following points and check whether they are collinear or not:
(1, 3), (– 1, – 1), (– 2, – 3)
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Solution
Plotting the points P(1, 3), Q(–1, –1) and R(–2, –3) on the graph paper and join these points, we get a straight line. Hence, these points are collinear.

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