Ellipses
Center (h, k)
The standard form of an ellipse centered at (h, k) with its major axis parallel to the x-axis is 
.
The standard form for an ellipse centered at (h, k) with a major axis parallel to the y-axis is 
.
The rules of translation also apply to conic sections. For instance, if x is replaced with x ? h, the ellipse moves to the right by h. Use the generalizations below to determine the properties of an ellipse.
