Khan/khan-exercises — Issue #9966: Parabola intuition 1 - Needs hints
Author: KhanBugz
Created: 2011-12-31 22:54:15+00:00
State: open
Labels: firefox, other, win7

Reporter: christilin@msn.com

The hint button is greyed out (or pinked out)

[parabola_intuition_1.html?seed=169&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/parabola_intuition_1.html?seed=169&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/parabola_intuition_1.html?seed=169&problem=0&debug&activity=%5B%5B%22correct-activity%22%2C%22%5B%5C%22-3%5C%22%2C%5C%22-2%5C%22%2C%5C%221%5C%22%5D%22%2C41%5D%5D)

[["-3","-2","1"]]

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:8.0) Gecko/20100101 Firefox/8.0

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