A hotel offers a reward program based on the number of night stayed. The function f (x) represents the number of free nights earned as a function of x, the number of night stayed. Which describes the meaning of f (x) ?

a. A customer earns 1 free night per 10 nights stayed.

Step-by-step explanation:

The missing function is:

f (x) = x/10

The missing options are:

a. A customer earns 1 free night per 10 nights stayed.

b. A customer starts with 1 free night and then earns another free night after every 10 nights stayed.

c. A customer earns x - 10 free nights for every 10 nights stayed.

d. A customer earns 10 free nights after x number of nights stayed.

The function means that after a customer stayed 10 nights, a free night is earned. That is, replacing x = 10 into the function, we get:

f (10) = 10/10 = 1

which means 10 nights are equivalent to 1 free night.