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Centred at origin, an ellipse cuts the axes at (±6, 0) and (0, ±3). Equation:
Ax²/36 + y²/9 = 1
Bx²/36 + y²/3 = 1
Cx²/9 + y²/36 = 1
Dx²/6 + y²/3 = 1
Answer & Solution
Correct answer: A. x²/36 + y²/9 = 1
The intercepts give a = 6 and b = 3, so a² = 36 and b² = 9.
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