What are the focus and directrix of the parabola with the equation y = one-twelfthx2?
(1 point)
Responses
focus: (3, 0) ; directrix: y = –3
focus: (3, 0) ; directrix : y = –3
focus: (–3, 0) ; directrix: y = 3
focus: (–3, 0) ; directrix : y = 3
focus: (0, 3) ; directrix: y = –3
focus: (0, 3) ; directrix : y = –3
focus: (0, –3) ; directrix: y = 3