Reference Topics 15-4

A nice overview of the conic sections can be found at this site:
http://www.mathacademy.com/pr/prime/articles/concis/index.asp

This is a great interactive site for graphing conic sections.

In order to use this graphing tool, you need to write the equation in the form

Ax2 + Bxy + Cy2 + Dx + Ey + F = 0
https://www.symbolab.com/solver/conic-sections-calculator