For parabola y² = 4ax, point (at², 2at) gives parametric form. If t = 2 and a = 3:
A(12, 12) (= (3 × 4, 2 × 3 × 2))
B(12, 6)
C(6, 12)
D(4, 6)
Answer & Solution
Correct answer: A. (12, 12) (= (3 × 4, 2 × 3 × 2))
At² = 3 × 4 = 12, 2at = 12. Point: (12, 12). Verify on y² = 12x: 144 = 12 × 12. ✓
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