# Math

posted by
**Abbey(Please help)**
.

Find the center, vertices, foci, and eccentricity of the ellipse.

9x^2 + 4y^2 - 36x + 8y + 31 = 0

My answer was:

center=(2,1)

v=(-2,10)(-2,-10)

f=(-2,11)(-2,-11)

e=11/3

Where did I make a mistake?