Question

The length of a string in yards is a function f(n) of the length n in inches. Write a function rule for this situation

Answer 1

1 yard = 36 inches The right function rule is f(n) = 1/36n. so it would be f(n) = 1/36n

Answer 2

f(n) = n/36

Explanation:

The length of a string is given in yards, is a function f(n) of the length n in inches.

We have to write a function rule for this situation.

∵ 36 inches = 1 yard

∴ 1 inch = 1/36 (yard)

∴ n inches = n/36

and function representing the length will be

f(n) = n/36