Mathematics, 12.01.2021 23:30 PrincessIndia

Which of the following parabolas opens down? A. Directrix: y = -5; focus: (2, 6)
B. Directrix: y = 5; focus: (2,-6)
C. Directrix: y = 5; focus: (2,6)
D. Directrix: y = -5; focus: (-2, 6)

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Which of the following parabolas opens down? A. Directrix: y = -5; focus: (2, 6)
B. Directrix...