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What are the coordinates of the focus and the equation of the directrix? A. focus: ; [-1/4, 0]; directrix: x = 1/4 B. focus: ; [1/4, 0]; directrix: x = -1/4 C. focus: (–4,0); directrix: x = 4 D. focus:
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What are the coordinates of the focus and the equation of the directrix?

A. focus: ; [-1/4, 0]; directrix: x = 1/4 
B. focus: ; [1/4, 0]; directrix: x = -1/4
C. focus: (–4,0); directrix: x = 4
D. focus: (4,0); directrix: x = –4

User DivinusVox
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Answer: it's C!! :]

lemon demon neil cicirrega

User Danny Kim
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The answer is C. focus: (–4,0); directrix: x = 4
User Adam Stegman
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