Khan/khan-exercises — Issue #13063: Derivative intuition - Can't Pick Answer in Derivative Intuition
Author: KhanBugz
Created: 2012-02-04 18:04:01+00:00
State: open
Labels: not-showing, win7

Reporter: ynhockey@gmail.com

In the derivative intuition exercises, I can't pick an answers to proceed (the radio buttons don't appear at all).

I am using the browser Opera 11.61.

[derivative_intuition.html?seed=153&problem=polynomial](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/derivative_intuition.html?seed=153&problem=polynomial&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/derivative_intuition.html?seed=153&problem=polynomial&debug&activity=%5B%5D)

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Opera/9.80 (Windows NT 6.1; U; IBM EVV/3.0/EAK01AG9/LE; en) Presto/2.10.229 Version/11.61

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