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A horizontal hyperbola has c = 6 and e = 2. Which equation fits it?
Ax²/27 − y²/9 = 1
Bx²/36 − y²/27 = 1
Cx²/9 − y²/36 = 1
Dx²/9 − y²/27 = 1
Answer & Solution
Correct answer: D. x²/9 − y²/27 = 1
ae = 6 gives a = 3, and b² = a²(e² − 1) = 27.
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