The rental fee at a video store is $5 plus $1 for every day late. Which function describes this?f(x) = 5 - Xf(x) = 6xf(x) = 5x + 1f(x) = x + 5

The function which describes this situation is,
[tex]\begin{gathered} f(x)=5+1(x) \\ =5+x \end{gathered}[/tex]Thus, option (d) is correct.