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Parametric point of y² = 4ax?

A(2at, at²)
B(at, 2at²)
C(2at², at)
D(at², 2at)
Answer & Solution
Correct answer: D. (at², 2at)
Putting x = at² and y = 2at satisfies y² = 4a²t² = 4a(at²).
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