1.   Find the coordinates of the foci of an ellipse with equation
    A. B.
    C. D.
    Hint

  2.   Find the coordinates of the center of an ellipse with equation
9x2 + 4y2 - 72x + 16y + 124 = 0.
    A. (4, 9) B. (4, -2)
    C. (2, 3) D. (4, 2)
    Hint

  3.   Find the length of the major axis of an ellipse with equation
9x2 + y2 + 36x - 6y + 36 = 0.
    A. 9 B. 1
    C. 6 D. 2
    Hint

  4.   Find the length of the minor axis of an ellipse with equation
5x2 + 3y2 + 10x - 18y + 17 = 0.
    A. B.
    C. D.
    Hint

  5.   Which is the graph of 4x2 + 9y2 + 16x -18y -11 = 0?
    A. B.
    C. D.
    Hint