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OpenStudy (anonymous):
7x-5y=30_5y-7x=-30 solve the system by graphing, is it dependent or independent, and is it consistent or inconsistent
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OpenStudy (mathteacher1729):
http://www.wolframalpha.com type plot 7x-5y=30 , 5y-7x=-30 They are the same line (same slope, same intercept) so the solution is consistent (it exists) and dependent (the lines are identical).
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