Form the differential equation of family of lines concurrent at the origin.

Form the differential equation of family of circles having center at origin.

Form the differential equation of family of circles having center at origin.

Find the differential equation of the family of lines through the origin.

Find the differential equation of the family of lines passing through the origin.

Form the differential equation of family of lines parallel to the line 2x+3y+4=0 .

The differential equation of the family of lines y = mx is :

Form the differential equation of the family of parabolas with focus at the origin and the axis of symmetry along the axis.

Form the differential equation of the family of parabolas with focus at the origin and the axis of symmetry along the axis.

Form the differential equation of the family of parabolas with focus at the origin and the axis of symmetry along the axis.