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A parabola has focus (2, 0) and directrix x = -2. Give its equation.
Ax² = 8y
By² = 4x
Cy² = 2x
Dy² = 8x
Answer & Solution
Correct answer: D. y² = 8x
The focus is (2, 0), so a = 2 and the parabola is y² = 4ax = 8x.
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