[SOLVED] Equation of an ellipse...

I'm so sorry if this doesn't belong here. ><; I'm going a bit frantic across homework help forums looking for responses to this. @_@;

Does anyone know how to calculate the equation of an ellipse (in this case, (x^2/b^2) + (y^2/a^2) = 1 since I graphed the points and it looked like the major axis was vertical) when the only given information is that the center is (0,0) and that 2 points on the ellipse are (2, -2) and (-2/3, 10/3)?

Any help would be greatly appreciated ^^;

EDIT Nevermind I solved it. Sorry 'bout that.