Answer :

(4, 3), (1, 2) and (–2, 1)

Let A (4, 3) B (1, 2) and C (–2, 1) be the vertices of triangle.

Area of triangle =

x_{1} = 4, x_{2} = 1 and x_{3} = –2

y_{1} = 3, y_{2} = 2 and y_{3} = 1

⇒

⇒

⇒

⇒

Therefore, the given points are collinear.

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