If the points A(x , y),B(3,6)a n dC(-3,4...

If the points `A(x , y),B(3,6)a n dC(-3,4)` are collinear, show that `x-3y+15=0`

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If the points A(x,y),B(3,6) and C(-3,4) are collinear,show that x-3y+15=0

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