Khan/khan-exercises — Issue #15093: Equation of a line - Alternate Answer is marked Incorrect
Author: KhanBugz
Created: 2012-03-01 06:40:49+00:00
State: open
Labels: chrome, snowleo, wrong-or-unclear

Hi,

The equation of a line problem I was working on marks my answer as incorrect:

A line passes through both (5,−2) and (−5,2). Express the equation of the line in point slope form.

I put my answer down as (y-0) = -2/5*(x-0), which should just be an alternate form of the correct answer. If you simplify the answer provided, the integers should cancel out.

[equation_of_a_line.html?seed=145&problem=two-points (point_slope_form)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/equation_of_a_line.html?seed=145&problem=two-points&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/equation_of_a_line.html?seed=145&problem=two-points&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5B%5C%220%5C%22%2C%5C%22-2%2F5%5C%22%2C%5C%220%5C%22%5D%5D%22%2C52%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%2C7%5D%5D)

[[["0","-2/5","0"]]]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11

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