1. When does a set become a function?

2. What do you call a process that the number assigned to a given variable determines the value of the function at that numbers?

3. When does a function value become undefined? When does the value of function not exist?


Sagot :

Answer:

1.A relation from a set X to a set Y is called a function if each element of X is related to exactly one element in Y. That is, given an element x in X, there is only one element in Y that x is related to. For example, consider the following sets X and Y

2.