JEE Main2015MathematicsStraight LinesActual

The points 0 , 8 3 , 1 , 3 and 82 , 30

Options

Aform an obtuse angled triangle
Bform an acute angled triangle
Clie on a straight line
Dform a right angled triangle

Correct answer

C. lie on a straight line

Step-by-step solution

The points, A 0 , 8 3 , B 1 , 3 , C 82 , 30 are collinear, as slope of A B = slope of B C , i.e., 3 - 8 3 1 - 0 =   30 - 3 82 - 1 = 1 3 Hence, option (Lie on a straight line) is correct.

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