Have I done this correctly?
f is inversely proportional to d
when d=50, f=256
Find value of f when d=80
Figured out a constant of 25/125
Is thsi correct?
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since f is inversely proportional to d we have
f=k/d where k is a constant
now as f=256 when d=50 then
so value of f when d=80
f is inversely proportional to d ...
... where k is the constant of proportionality.
substitute in the given values to solve for k ...
... finish the problem
ah I did d/k.
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