Khan/khan-exercises — Issue #7806: Parabola intuition 3 - this is confusing
Author: KhanBugz
Created: 2011-12-05 17:40:33+00:00
State: open
Labels: chrome, hard, win7

i dont understand

[parabola_intuition_3.html?seed=81&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/parabola_intuition_3.html?seed=81&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/parabola_intuition_3.html?seed=81&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%22--%5C%22%2C%5C%22%5C%22%2C%5C%22%5C%22%2C%5C%22%5C%22%2C%5C%22%5C%22%2C%5C%22%5C%22%5D%22%2C35%5D%2C%5B%22hint-activity%22%2C%220%22%2C7%5D%2C%5B%22hint-activity%22%2C%220%22%2C7%5D%2C%5B%22hint-activity%22%2C%220%22%2C8%5D%2C%5B%22hint-activity%22%2C%220%22%2C8%5D%2C%5B%22hint-activity%22%2C%220%22%2C10%5D%2C%5B%22hint-activity%22%2C%220%22%2C10%5D%2C%5B%22hint-activity%22%2C%220%22%2C10%5D%2C%5B%22hint-activity%22%2C%220%22%2C11%5D%5D)

[["--","","","","",""]]

Mozilla/5.0 (Windows NT 6.1) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2

MathJax is loaded, ready, queue length: 0