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Mathematics 19 Online
OpenStudy (anonymous):

Which equation is a direct variation equation that has (3, 18) as a solution? a) y = 2x(squared) b) y = 1/6x c) y = 6x d) y = 4x + 6

OpenStudy (anonymous):

Would I plug in the points?

OpenStudy (anonymous):

y=kx is the formula for direct variation You have (3,18) as one coordinate pair

OpenStudy (anonymous):

solve for k

OpenStudy (anonymous):

Would it be c?

OpenStudy (anonymous):

yes :)

OpenStudy (anonymous):

Okay awesome. Thank you. By the way.. how are you so smart??

OpenStudy (anonymous):

idk, I like doing competition math. check out this website: http://floridamao.org/PublicPages/TestArchive.aspx

OpenStudy (anonymous):

the math tests there are pretty difficult

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