Consider these functions from the set of students in a discrete mathematics class. state under what conditions is the function one-to-one if it assigns to a student the following things below. also state how likely this is in practice. thematics blaue seate under what
(a) mobile phone number.
(b) student identification number.
(c) final grade in the class.
(d) home town.
for example, the function in part (c) is one-to-one if each student has a unique student identification number. in other words, if no two students share the same student identification number. this is usually the case in practice since identification numbers are usually used to identify a unique student.