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OpenStudy (anonymous):
If f(x) varies directly with x, and f(x) =48 when x=8, find the value of f(x) when x=2
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OpenStudy (anonymous):
f(x)=kx 48=8k find k
OpenStudy (anonymous):
f(x) = kx k = f(x)/x f(8) = 48 k = 48/8 = 6 f(2) = 6. 2 = 12 so 12 is d answer
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