Khan/khan-exercises — Issue #15528: Algebra challenge - answer not given in options
Author: KhanBugz
Created: 2012-03-06 07:00:36+00:00
State: open
Labels: ie8, ie9, win7, wrong-or-unclear

the anser is not given in options

[algebra_challenge.html?seed=197&problem=25 (inverses_of_functions)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/algebra_challenge.html?seed=197&problem=25&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/algebra_challenge.html?seed=197&problem=25&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22None%20of%20the%20above.%5C%22%22%2C58%5D%2C%5B%22hint-activity%22%2C%220%22%2C1%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%5D)

["None of the above."]

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