Plot the following points and check whether they are collinear or not:
$(1, 3), (- 1, - 1), (- 2, - 3)$

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Solution

Collinear Points.
Collinear points are the points that lie on the same straight line or in a single line.
The given points $(1, 3), (- 1, - 1), (- 2, - 3)$ are drawn on the graph, which is shown below.
From the graph, it is observed that all the given points are lies on a straight line.
Hence, the given points are collinear.

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