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Mathematics 14 Online
OpenStudy (anonymous):

Given that y varies directly with x, use y=9, x=3 to write a direct variation equation that relates x and y. I totally forgot how to do direct variation, please help!

OpenStudy (aripotta):

y = kx do some substituting. 9 = 3k solve for k. k = 3 substitute 3 for k in the original. y = 3x

OpenStudy (anonymous):

Thank you!

OpenStudy (aripotta):

does that make sense? do you remember now?

OpenStudy (anonymous):

Yeah it makes more sense, thank you again!

OpenStudy (aripotta):

no problemo :)

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