if the points A(x, 2), B(-3, -4), C(7, -5) are collinear, then the value of x is
The given points are A(x, 2) , B(-3, -4) and C(7, -5).
The points A, B and C are collinear if area of a triangle formed by joining these points is 0.
The points A, B and C are collinear if area of a triangle formed by joining these points is 0.