Respuesta :
The function that models the number of rolls the caterer has is f(p)=12p+5, where p is the number of packages that he orders. It is known that he can order up to 9 packages of rolls and cannot order partial packages. This means that he can order only the whole number of packages, i. e., 1, 2, 3, 4, 5, 6, 7, 8 ,9 (he cannot order 2.5 packages). So, the domain of the function f(p) is the set
{1, 2, 3, 4, 5, 6, 7, 8, 9}.
Answer: all integers from 1 to 9