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anonymous
 one year ago
Please help will fan and medal!!! Determine whether y varies directly with x. If so, find the constant of variation k.
x y
4 6.4
7 11.2
10 16
13 20.8
anonymous
 one year ago
Please help will fan and medal!!! Determine whether y varies directly with x. If so, find the constant of variation k. x y 4 6.4 7 11.2 10 16 13 20.8

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Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1\[\huge\rm y=kx\] equation for direct variation and k is constant of variation so pick any (x,y) and plug them into the equation

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yeah that helped! im just trying to figure out the last part. find the constant variation of k and write an equation.. @Nnesha

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1yes so k is what ? did you solve that ?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1yes that's right now replace k with 1.6 in this equation y=kx that's it
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