Question

suppose why varies directly with X write a direct variation equation that relates ex and Y then find the value of Y when X=18

y=7 x=6

write a direct variation equation that relates X and Y
y=

what is the value of Y when X=18
Y=
direct variation means y = kx
so use the values they gave you to get
7 = k*6
k = 7/6
so y = 7/6 x

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