Khan/khan-exercises — Issue #7725: Graphing inequalities 2 - Graphing inequalities 2 - answer error
Author: KhanBugz
Created: 2011-12-04 15:50:06+00:00
State: open
Labels: chrome, vista, wrong-or-unclear

Reporter: rjm8611@gmail.com

y< -2/5X + 9 for (6,-9) or (-7,4)

Both are answers but when both are checked unhappy face comes up. Please review and correct.

[graphing_inequalities_2.html?seed=146&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/graphing_inequalities_2.html?seed=146&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/graphing_inequalities_2.html?seed=146&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5B%5B0%2C9%5D%2C%5B9%2C7%5D%2Ctrue%2Cfalse%5D%2C%5B%5C%22(6%2C%E2%88%929\)(6%2C%20-9)%20is%20a%20solution%5C%22%2C%5C%22(%E2%88%927%2C4)(-7%2C%204)%20is%20a%20solution%5C%22%5D%5D%22%2C99%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5B%5B0%2C9%5D%2C%5B9%2C7%5D%2Ctrue%2Cfalse%5D%2C%5B%5C%22(6%2C%E2%88%929)(6%2C%20-9)%20is%20a%20solution%5C%22%2C%5C%22(%E2%88%927%2C4)(-7%2C%204)%20is%20a%20solution%5C%22%5D%5D%22%2C132%5D%2C%5B%22hint-activity%22%2C%220%22%2C7%5D%2C%5B%22hint-activity%22%2C%220%22%2C19%5D%2C%5B%22hint-activity%22%2C%220%22%2C36%5D%2C%5B%22hint-activity%22%2C%220%22%2C46%5D%2C%5B%22hint-activity%22%2C%220%22%2C68%5D%2C%5B%22hint-activity%22%2C%220%22%2C81%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5B%5B0%2C9%5D%2C%5B9%2C7%5D%2Ctrue%2Cfalse%5D%2C%5B%5C%22(6%2C%E2%88%929)(6%2C%20-9)%20is%20a%20solution%5C%22%2C%5C%22(%E2%88%927%2C4)(-7%2C%204)%20is%20a%20solution%5C%22%5D%5D%22%2C100%5D%5D)

[[[[0,9],[9,7],true,false],["(6,−9)(6, -9) is a solution","(−7,4)(-7, 4) is a solution"]],[[[0,9],[9,7],true,false],["(6,−9)(6, -9) is a solution","(−7,4)(-7, 4) is a solution"]],[[[0,9],[9,7],true,false],["(6,−9)(6, -9) is a solution","(−7,4)(-7, 4) is a solution"]]]

Mozilla/5.0 (Windows NT 6.0) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2

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