(a) Determine the value of a if the straight line `ax+7y=3(a-2)` passes through the origin.

(b) Determine the value of a if the straight line 2x+ay=10(a-30) passes through the point (1,2)) .

(ix) Find the value of a if the straight line 10x+(a-1)y=11(a-3) passes through the origin.

The straight line 2x +3y = 12 passes through :

Which of the following straight lines passes through the origin?

The condition for which the straight line ax +by +c=0 will pass throught the origin is -

If the straight lines x+2y=9,3x-5y=5 and ax+by=1 are concurrent , then the straight line 5x+2y=1 passes through the point

If the straight lines x+2y=9,3x-5y=5 and ax+by=1 are concurrent , then the straight line 5x+2y=1 passes through the point

Find the equation of a straight line perpendicular to the straight line 3x + 4y = 7 and passing through the point (3, -3).

Find the equation of the straight line which passes through the origin and the point of intersection of the lines ax+by+c=0 and a'x+b'y+c'=0 .