2x−3y+13=02 x-3 y+13=02x−3y+13=0
3x−2y+13=03 x-2 y+13=03x−2y+13=0
2x−3y−13=02 x-3 y-13=02x−3y−13=0
3x−2y−13=03 x-2 y-13=03x−2y−13=0