Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/B2wK/ Esercizi: http://www.khanacademy.org/exercise/equation_of_a_hyperbola Traduzione in Italiano del video Conic Sections: Hyperbolas 3 http://www.youtube.com/watch?v=lGQw-W1PxBE http://www.khanacademy.org/video/conic-sections--hyperbolas-3?playlist=Algebra