If the points A(x,2) ,B(-3,-4) and C(7,-5) are collinear, then find the value of x.

If the points A(x,2) ,B(-3,-4) and C(7,-5) are collinear, then find th

1.	If the points A(x,2) ,B(-3,-4) and C(7,-5) are collinear, then find the value of x.
Answer» By the help of formula of triangle you can find it.X1( Y2 -Y3)+ X2(Y3-Y1)+X3 (Y1-Y2)=0If theyare collinear