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for collinear points we have area of triangle must be zero
i.e 1/2(-5(10) +x(-3-y)+11(y-7)) =0
-50 -3x -3y +11y -77= 0
- 3x +8y= 127
i.e 1/2(-5(10) +x(-3-y)+11(y-7)) =0
-50 -3x -3y +11y -77= 0
- 3x +8y= 127
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