Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/B2xD/ Esercizi: http://www.khanacademy.org/exercises?exid=graphing_points Traduzione in Italiano del video Algebra: graphing lines 1 http://www.youtube.com/watch?v=2UrcUfBizyw http://www.khanacademy.org/video/algebra--graphing-lines-1?playlist=Algebra Help us caption & translate this video! http://amara.org/v/B2xD/