Multiple Choice What are the focus and directrix of the parabola with the equation y = x2? (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 focus: (0, –3) ; directrix : y = 3