What conic section is #25x^2 + 100x + 9y^2 – 18y = 116#?
If a, b and 2h are the coefficients of the terms in
The equation can be reorganized as
Center C of the ellipse is
Semi axes a = 5 and b = 3.
Major axis is
Eccentricity e =
For foci S and S', CS = CS' = ae =