NCERT Solution Class X Mathematics Coordinate Geometry Question 3 (Ex 7.1)

Question 3:

Determine if the points (1, 5), (2, 3) and (− 2, − 11) are collinear.

Answer:

Let the points (1, 5), (2, 3), and (−2, −11) be representing the vertices A, B, and C of the given triangle respectively.

Let A = (1,5), B = (2,3), C = (−2, −11)

Therefore, the points (1, 5), (2, 3), and (−2, −11) are not collinear.

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