Conics

//point// //point// //one line// //two intersecting lines// //two parallel lines// //no intersection// [|**Sparknotes conics**]
 * __//General Equation for a Conic//__**
 * __Parabola__**
 * __p:__ focus
 * __4p__: focal width, focal chord, latus rectum
 * __directrix__: p units away from the vertex
 * __eccentricity__: e=1
 * [[image:conic_discriminant_parabola.png]]
 * __Ellipse__**
 * //a is the bigger number//
 * __foci__: [[image:conic_ellipse_foci.png]]
 * __2a__: major axis length
 * __2b__: minor axis length
 * __eccentricity:__ e=c/a
 * __latus rectum__: [[image:conic_latus_rectum.png]]
 * [[image:conic_discriminant_ellipse--circle.png]]
 * __Circle__**
 * __eccentricity__: e=0
 * __center__: (h,k)
 * __latus rectum__: diameter
 * [[image:conic_discriminant_ellipse--circle.png]] if a=c
 * __Hyperbola__**
 * //a is always the first term//
 * __foci__: [[image:conic_hyperbola_foci.png]]
 * __eccentricity:__ e=c/a
 * __latus rectum__: [[image:conic_latus_rectum.png]]
 * [[image:conic_discriminant_hyperbola.png]]
 * __Degenerate Circle__**
 * __Degenerate Ellipse__**
 * __Degenerate Parabola__**
 * __Degenerate Hyperbola__**
 * __Degenerate Cone (Cylinders)__**
 * __Empty Set__**