Suppose that the average number of minutes M that it takes a new employee to assemble one unit of a product is given by
M = 40 + 30t / 2t + 1
where t is the number of days on the job. Is this function continuous
(a) For all values of t?
(b) At t = 14?
(c) For all t ≥ 0?
(d) What is the domain for this application?