5. The table shows the amount of pet food in cups remaining in an automatic feeder as
 a function of the number of meals the feeder has dispensed.
 f(n)= -3n+64
 O
 f (n)=
 1
 n + 16
 Automatic Feeder
 Amount of Pet Food
 Number of Meals
 Dispensed, n
 Remaining, f(n)
 (cups)
 1
 21
 O
 f (n)= -3n+24
 3
 15
 6
 6
 1
 0
 f(n)-
 n + 8
 7
 3
 3
 Based on the table, which function models this situation?