engineering mathematics MCQ #418

What is the directrix of the parabola x² = -12y?

engineering mathematics MCQ #418

  1. Question 1

    Q1. What is the directrix of the parabola x² = -12y?

    • A) y = 3
    • B) y = -3
    • C) x = 3
    • D) x = -3

    Answer: y = 3

    Explanation: For x² = 4py, p = -3. Directrix is y = -p = 3.