The general equation or standard equation of a straight line is given by
Where and are any constants and also either or .
Putting in the above standard equation of a line, we have
This shows that the line is passing through the point .
Since we have , so by squaring
Since equation of straight line in symmetric form is
Now putting in the standard equation of symmetric form, we have
This is the equation of line in symmetric form transformed from its general form or standard form of straight line.