The total number of straight lines that pass through origin and are at a distance of 3 units from the line x + y = 6 is

Equation of the straight line passing through (1,1) and at a distance of 3 units from (-2,3) is

If each line of a pair of lines passing through origin is at a perpendicular distance of 4 units from the point (3, 4) , then the equation of the pair of lines is

The differntial equation of all straight line passing through origin is

Which of the following straight lines passes through the origin?

Find the equation of the straight line passing through the origin and the point of intersection of the lines x/a + y/b = 1 and x/b + y/a = 1.

A line parallel to the straight line 3x-4y-2=0 and at a distance of 4 units from it is

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