Question

Please help

Find the center of an ellipse with the equation 9x2 + 16y2 – 18x + 64y = 71.
(–1, 2)
(1, –2)
(–2, 1)
(2, –1)

Answer 1

Group the x's and y's; divide x's by 9; y's by 16; then complete square. That gives you what is called the equation of the ellipse and you can work from there.