Question: The three points (x 1 , y 1 ), (x 2 , y 2 ), and (x 3 , y 3 ) are collinear (they

The three points (x1, y1), (x2, y2), and (x3, y3) are collinear (they lie on a single straight line) if

xi y X2 X3 1 1

use this fact to decide if the given points are colliner.

(−2, 1), (2, 3), (6, 5)

xi y X2 X3 1 1

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