The next conic section is like a circle, but it's like someone stretched a circle out in a particular direction. It's the ellipse! These are very important in astronomy as most celestial objects follow elliptical paths. Let's learn all about ellipses and how to graph them. Watch the whole Mathematics playlist: Classical Physics Tutorials: Modern Physics Tutorials: General Chemistry Tutorials: Organic Chemistry Tutorials: Biochemistry Tutorials: Biology Tutorials: EMAIL► ProfessorDaveExplains@ PATREON► Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience! Amazon: Bookshop: Barnes and Noble: Book Depository: