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The function f(x) varies directly with x and f(x)=12 when x=8

Which answer is the direct linear variation equation ?

A) f(x)=8x

B) f(x)=12x

C) f(x)=2/3x

D) f(x)= 3/2x

Respuesta :

nobillionaireNobley
f(x) = kx
12 = 8k
k = 12/8 = 3/2

Required equation is f(x) = 3/2 x

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