Eli has 7 bottles of water.
He will buy more 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 Eli will
have after his purchase is f(c)=24c+7, where c is the number of cases of water
he buys.
The practical domain of the
function is all positive integer because c represents the number of case, and
there is no negative number of case and it is not sold in partial so only
positive intger can satisfy the given function.
