AP EAMCET Engineering 22 Apr 2019 Shift 2 Paper

The vertices of a triangle OBC are O (0 , 0), B ( - 3, - 1) and C (- 1 , - 3). If the line joining the point D on OC and E on OB is parallel to BC and the perpendicular distance of O from DE is

1

2

, then the equation of DE is