Question
On comparing the ratios 
and without drawing them, find out whether the lines representing the following pairs of linear equations intersect at a point, are parallel or coincide.
6x - 3y + 10 = 0, 2x - y + 9 = 0.
Solution
Comparing the given equations with standard forms of equations a1x + b1y + c1, = 0 and a2x + b2y + c2 = 0 we have,
Thus, the lines representing the pair of linear equations are parallel.
Thus, the lines representing the pair of linear equations are parallel.
