Khan/khan-exercises — Issue #9986: Midpoint formula - Needs acceptable answer list
Author: KhanBugz
Created: 2012-01-01 18:27:53+00:00
State: open
Labels: firefox, other, win7

Reporter: christilin@msn.com

see title

[midpoint_formula.html?seed=68&problem=find-midpoint](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/midpoint_formula.html?seed=68&problem=find-midpoint&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/midpoint_formula.html?seed=68&problem=find-midpoint&debug&activity=%5B%5B%22correct-activity%22%2C%22%5B%5C%22-1%2F2%5C%22%2C%5C%229%2F2%5C%22%5D%22%2C57%5D%5D)

[["-1/2","9/2"]]

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

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