Khan/khan-exercises — Issue #14551: Algebra challenge - This is a stupid question.
Author: KhanBugz
Created: 2012-02-24 01:10:15+00:00
State: open
Labels: firefox, win7, wrong-or-unclear

First off, why would anyone ever express 0 slope in point slope form? Second, the answer does not accept (x-5) when clearly any value of x is correct.

[algebra_challenge.html?seed=60&problem=y-as-function-of-x (point_slope_form)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/algebra_challenge.html?seed=60&problem=y-as-function-of-x&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/algebra_challenge.html?seed=60&problem=y-as-function-of-x&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5B%5C%22-5%5C%22%2C%5C%22%5C%22%2C%5C%225%5C%22%5D%5D%22%2C191%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%2C5%5D%2C%5B%22hint-activity%22%2C%220%22%2C9%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5B%5C%22-5%5C%22%2C%5C%220%5C%22%2C%5C%225%5C%22%5D%5D%22%2C26%5D%2C%5B%22correct-activity%22%2C%22%5B%5B%5C%22-5%5C%22%2C%5C%220%5C%22%2C%5C%224%5C%22%5D%5D%22%2C24%5D%5D)

[[["-5","","5"]],[["-5","0","5"]],[["-5","0","4"]]]

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0.2) Gecko/20100101 Firefox/10.0.2

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