Final answer:
The rule to convert fluid ounces to quarts is to divide the number of fluid ounces, f, by 32. This is represented by the function f(quarts) = f(ounces) / 32.
Step-by-step explanation:
To express the number of quarts as a function of fluid ounces, you need to understand the conversion factor between these two units of volume. Since there are 32 fluid ounces in one quart, you would divide the total number of fluid ounces by 32 to find out how many quarts it equates to.
For example, if you have 4 quarts, and you want to find out how many fluid ounces that is, you would multiply the number of quarts by 32. Therefore, 4 quarts multiplied by 32 equals 128 fluid ounces. This demonstrates the process of converting quarts to ounces.
Similarly, when given the number of fluid ounces and you need to find out how many quarts it is, you divide the number of fluid ounces by 32. This is the rule you are looking for, and it can be written as the function:
f(quarts) = f(ounces) / 32