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Mathematics, 14.02.2022 14:00 shykim

Which of the following parabolas opens down? A. Directrix: y = 1; focus: (2, 4)
B. Directrix: y = -1; focus: (-2,-4)
O C. Directrix: y = -1; focus: (-2,4)
D. Directrix: y = 1; focus: (-2, 4)

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Which of the following parabolas opens down? A. Directrix: y = 1; focus: (2, 4)
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