f(x) is a linear function that increases with x. represents the number of free nights earned as a function of x, the number of nights that you stay.
We know that f(x) represents the number of free nights earned as a function of x, the number of nights that you stay.
Such that:
f(x) = x/10.
Notice that, if x = 10, then:
[tex]f(10) = 10/10 = 1[/tex]
This means that if you stay for 10 nights, then you get a free night.
If you stay for 20 nights, then you win two free nights, and so on.
f(x) is a linear function that increases with x.
If you want to learn more about linear functions:
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