Question 88110

       
  How can you prove that a point (x, y) is not located on a line of a given equation

    First substitute the value of x and y in the given equation , if the right hand side is equal to the left hand side then the point lies on the given equation.
   
   Let me give you an example:-  To show that the point (1,2) lies on the line of the equation 4x+2 = 3y 
   L.H.S = 4x+2 = 4(1)+2 = 4+2 = 6
   R.H.S = 3y = 3(2) = 6  since L.H.S = R.H.S  the point is said to lie on the given equation.