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Algebra 20 Online
OpenStudy (anonymous):

http://answers.yahoo.com/question/index?qid=20130227235411AAa7lqO

OpenStudy (anonymous):

http://answers.yahoo.com/question/index?qid=20130227234913AAl0VHQ this one too :3

OpenStudy (anonymous):

Can't see the first question... For the second, x, y 7, 11 8, 13 9, 15 10, 17 check the (change in y) / (change in x) between two consecutive points. (change between 11 and 13) / (change between 7 and 8) =(2)/(1)=2 If this ratio is the same with the next set of consecutive points then y varies directly with x with a constant of variation of 2.

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