Khan/khan-exercises — Issue #8805: Functions 1 - introduction to fuction
Author: KhanBugz
Created: 2011-12-16 10:55:45+00:00
State: open
Labels: hard, ie8, xp

what i am wodering is i can'not figure out to find out f(x).

[functions_1.html?seed=98&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/functions_1.html?seed=98&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/functions_1.html?seed=98&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22-1%5C%22%22%2C259%5D%2C%5B%22incorrect-activity%22%2C%22%5C%228%5C%22%22%2C61%5D%2C%5B%22correct-activity%22%2C%22%5C%226%5C%22%22%2C35%5D%5D)

["-1","8","6"]

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; FunWebProducts; GTB7.2; InfoPath.2; AskTbIJBME/5.13.1.18107; FunWebProducts; BOIE8;ENUS)

MathJax is loaded, ready, queue length: 0