This post is about hyperbola section. Hyperbola basically, a  graph of reciprocal function. It is part of conic section. Normally , it is the part of syllabus of SAT subject test.

A hyperbola is an open curve with two branches, the intersection of a plane with both halves of a double cone. The plane does not have to be parallel to the axis of the cone; the hyperbola will be symmetrical in any case.

Hyperbola

hyperbola