**11.5: Conic Sections - Mathematics LibreTexts**
https://math.libretexts.org/Bookshelves/Calculus/Book%3A_Calculus_(OpenStax)/11%3A_Parametric_Equations_and_Polar_Coordinates/11.5%3A_Conic_Sections

Finally, if the center of the ellipse is moved from the origin to a point \((h,k)\), we have the following standard form of an ellipse. Equation of an Ellipse in Standard Form Consider the ellipse with center \((h,k)\), a horizontal major axis with length \(2a\), and a vertical minor axis with length \(2b\).

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