engineering mathematics MCQ #367

Directrix of parabola y² = 8x is:

engineering mathematics MCQ #367

  1. Question 1

    Q1. Directrix of parabola y² = 8x is:

    • A) x = -2
    • B) y = -2
    • C) x = 2
    • D) y = 2

    Answer: x = -2

    Explanation: For y² = 4ax, directrix is x = -a. Here a=2.