Given that the original length of the baguette is 65, and for each day 15 gets cut off, we have the function
l(d) = 65 - 15d
where d is a positive integer representing the nth day. As a matter of fact, the possible vaalues for d are 0, 1, 2, 3, and 4. Since on the 5th day, there won't be enough baguette anymore. This shows that the function l(d) is not continous since only certain points satisfy the condition.
Thus, the function is l(d) = 65 - 15 where {d| 0 ≤ d ≤ 4} and it is discrete.
