varmando4691 varmando4691 26-09-2022 Mathematics contestada Which of the following parabolas opens down? A. Directrix: y = -1; focus: (-2,-4) B. Directrix: y = 1; focus: (-2,4) C. Directrix: y = 1; focus: (2, 4) D. Directrix: y = -1; focus: (-2, 4)