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The focus of the parabola y² = 12x is:
A(12, 0)
B(6, 0)
C(3, 0)
D(0, 3)
Answer & Solution
Correct answer: C. (3, 0)
Comparing with y² = 4ax gives a = 3, so the focus is (a, 0) = (3, 0).
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