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Question 390002
JEE Mathematics · Easy

Parabola: Focus and directrix MCQ

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Focus and directrixEasyQuestion 390002

Question

For y² = 4ax, the focus is at:
  1. A
    (a, 0)
    Correct
  2. B
    (−a, 0)
  3. C
    (0, a)
  4. D
    (0, 0)

Correct answer

(a, 0)

Explanation

For y² = 4ax: vertex at origin, focus at (a, 0), directrix at x = −a, axis = x-axis. Any point on parabola is equidistant from focus and directrix.

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