Khan/khan-exercises — Issue #6317: Slope of a line - Slope of a Line Exercise Module
Author: KhanBugz
Created: 2011-11-14 23:41:43+00:00
State: open
Labels: chrome, not-showing, win7

In the slope of a line exercise module, when the green line has an undefined slope, it doesn't show up in its coordinate plane (even when it's the correct answer). I have to use process of elimination to figure out the answer and this could lead to tricks or guesses solving the problem without actually doing the problem.

[slope_of_a_line.html?seed=61&problem=slopes-zero-infinity](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/slope_of_a_line.html?seed=61&problem=slopes-zero-infinity&debug)

["\\quad \\color{#28AE7B}{\\text{Green}}"]

Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.120 Safari/535.2

MathJax is loaded, ready, queue length: 0