Rocky has 7 bottles of water. he will buy bottles of water from the store. the store
has 8 cases in stock and each case contains 24 bottles of water. the store will not
sell partial cases. the function that models the number of bottles of water rocky
will have after his purchase is f(c)= 24c + 7. where c is the number of cases
of water he buys.
what is the theoretical domain of the function?

all real numbers

all real numbers from 1 to 8, inclusive

{31, 55, 79, 103, 127, 151, 175, 199}

all integers from 1 to 8, inclusive