engineering mathematics MCQ #422

What is the focus of the parabola y² = -20x?

engineering mathematics MCQ #422

  1. Question 1

    Q1. What is the focus of the parabola y² = -20x?

    • A) (-5, 0)
    • B) (5, 0)
    • C) (0, -5)
    • D) (0, 5)

    Answer: (-5, 0)

    Explanation: For y² = -4ax, focus is (-a, 0). Here 4a = 20 → a = 5.