Khan/khan-exercises — Issue #14256: Line relationships - hint suggestions
Author: KhanBugz
Created: 2012-02-20 22:45:56+00:00
State: open
Labels: firefox, other, win7

Reporter: christilin@msn.com

when you graph lines, include statement in text about the line being graphed, and have some color coding to match graph to equation.

instead of "The slopes are negative inverses of each other", maybe use "The slopes are negative reciprocals"...

[line_relationships.html?seed=90&problem=perpendicular](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/line_relationships.html?seed=90&problem=perpendicular&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/line_relationships.html?seed=90&problem=perpendicular&debug&activity=%5B%5B%22correct-activity%22%2C%22%5C%22Perpendicular%20lines%5C%22%22%2C17%5D%5D)

["Perpendicular lines"]

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:9.0.1) Gecko/20100101 Firefox/9.0.1

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