Khan/khan-exercises — Issue #8897: Graphing systems of inequalities - answer is wrong
Author: KhanBugz
Created: 2011-12-17 22:36:09+00:00
State: open
Labels: chrome, win7, wrong-or-unclear

I graphed the inequalities and selected check answer. When it said wrong i clicked all the hints because i was sure i was right. The answer was the same thing i put, but it still said i was wrong

[graphing_systems_of_inequalities.html?seed=104&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/graphing_systems_of_inequalities.html?seed=104&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/graphing_systems_of_inequalities.html?seed=104&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5B%5B1%2C4.949999999999999%5D%2C%5B0%2C-1.0500000000000007%5D%2Ctrue%2Cfalse%2C%5B0%2C2.9499999999999993%5D%2C%5B1%2C4.949999999999999%5D%2Ctrue%2Cfalse%5D%5D%22%2C98%5D%2C%5B%22hint-activity%22%2C%220%22%2C17%5D%2C%5B%22hint-activity%22%2C%220%22%2C17%5D%2C%5B%22hint-activity%22%2C%220%22%2C17%5D%2C%5B%22hint-activity%22%2C%220%22%2C17%5D%2C%5B%22hint-activity%22%2C%220%22%2C18%5D%2C%5B%22hint-activity%22%2C%220%22%2C18%5D%2C%5B%22hint-activity%22%2C%220%22%2C18%5D%2C%5B%22hint-activity%22%2C%220%22%2C18%5D%2C%5B%22hint-activity%22%2C%220%22%2C18%5D%2C%5B%22hint-activity%22%2C%220%22%2C19%5D%2C%5B%22hint-activity%22%2C%220%22%2C19%5D%2C%5B%22hint-activity%22%2C%220%22%2C19%5D%2C%5B%22hint-activity%22%2C%220%22%2C19%5D%2C%5B%22hint-activity%22%2C%220%22%2C19%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5B%5B1%2C4.949999999999999%5D%2C%5B0%2C-1.0500000000000007%5D%2Cfalse%2Cfalse%2C%5B0%2C2.9499999999999993%5D%2C%5B1%2C4.949999999999999%5D%2Ctrue%2Cfalse%5D%5D%22%2C75%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5B%5B1%2C4.949999999999999%5D%2C%5B0%2C-1.0500000000000007%5D%2Ctrue%2Cfalse%2C%5B0%2C2.9499999999999993%5D%2C%5B1%2C4.949999999999999%5D%2Cfalse%2Cfalse%5D%5D%22%2C4%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5B%5B1%2C4.949999999999999%5D%2C%5B0%2C-1.0500000000000007%5D%2Ctrue%2Cfalse%2C%5B0%2C2.9499999999999993%5D%2C%5B1%2C4.949999999999999%5D%2Ctrue%2Cfalse%5D%5D%22%2C3%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5B%5B1%2C4.949999999999999%5D%2C%5B0%2C-1.0500000000000007%5D%2Cfalse%2Cfalse%2C%5B0%2C2.9499999999999993%5D%2C%5B1%2C4.949999999999999%5D%2Cfalse%2Cfalse%5D%5D%22%2C3%5D%5D)

[[[[1,4.949999999999999],[0,-1.0500000000000007],true,false,[0,2.9499999999999993],[1,4.949999999999999],true,false]],[[[1,4.949999999999999],[0,-1.0500000000000007],false,false,[0,2.9499999999999993],[1,4.949999999999999],true,false]],[[[1,4.949999999999999],[0,-1.0500000000000007],true,false,[0,2.9499999999999993],[1,4.949999999999999],false,false]],[[[1,4.949999999999999],[0,-1.0500000000000007],true,false,[0,2.9499999999999993],[1,4.949999999999999],true,false]],[[[1,4.949999999999999],[0,-1.0500000000000007],false,false,[0,2.9499999999999993],[1,4.949999999999999],false,false]]]

Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.63 Safari/535.7

MathJax is loaded, ready, queue length: 0