Q17 of 149 Page 14

Prove that the points (- 2, 5), (0, 1) and (2, - 3) are collinear.

Vertices are: A(- 2, 5), B(0, 1) and C(2, - 3)


Using distance formula =


Length of side AB = = = = units


Length of side BC = = = = units


Length of side AC = = = = units


Since length of AB + BC = AC, therefore points are collinear.


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