The boundary of the lawn in front of a building is represented by the parabola y = x^2/16 + x - 2. The parabola is represented on the coordinate plane. The building's entrance is located at the parabola's focus, which has the coordinates . The lawn's gate is located at the parabola's vertex, which has the coordinates . The building’s front wall is located along the directrix of the parabolic lawn area. The directrix of the parabola is .