engineering mathematics MCQ #332

The center of the circle x² + y² + 2x + 4y + 1 = 0 is

engineering mathematics MCQ #332

  1. Question 1

    Q1. The center of the circle x² + y² + 2x + 4y + 1 = 0 is

    • A) (-1, -2)
    • B) (1, 2)
    • C) (-2, -1)
    • D) (2, 1)

    Answer: (-1, -2)

    Explanation: The center = (-g, -f) for x² + y² + 2gx + 2fy + c = 0.