Questions in st-line

Select	Question
	The equations of the lines through the origin making an angle of ${{60}^{o}}$ with the line $x+y\sqrt{3}+3\sqrt{3}=0$ are
	The point $P\,(a,\ b)$ lies on the straight line $3x+2y=13$ and the point $Q\ (b,\ a)$ lies on the straight line $4x-y=5,$ then the equation of line PQ is
	The equation of the line passing through (1, 1) and parallel to the line $2x+3y-7=0$ is
	If the intercept made by the line between the axis is bisected at the point (5, 2), then its equation is
	The equation of straight line passing through the intersection of the lines $x-2y=1$ and $x+3y=2$ and parallel to $3x+4y=0$ is
	Equation of a line passing through the point of intersection of lines $2x-3y+4=0,$ $3x+4y-5=0$ and perpendicular to $6x-7y+3=0,$ then its equation is
	If we reduce $3x+3y+7=0$ to the form $x\cos \alpha +y\sin \alpha =p,$ then the value of $p$ is
	The equation of the straight line joining the origin to the point of intersection of $y-x+7=0$ and $y+2x-2=0$ is
	The equation of line perpendicular to $x=c$ is
	A line AB makes zero intercepts on x–axis and y–axis and it is perpendicular to another line CD, $3x+4y+6=0.$ The equation of line AB is