To convert the length from feet to yards, you should know that there are 3 feet in a yard. Therefore, to find the length in yards (ƒ(n)) as a function of the length in feet (n), you would divide the number of feet by 3.
The correct function rule is:
\[ ƒ(n) = \frac{n}{3} \]
Neither \(ƒ(n) = 3n\) nor \(ƒ(n) = 12n\) is correct for converting feet to yards. Instead, use the function \(ƒ(n) = \frac{n}{3}\) to represent the conversion.
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