Question

Is the following relation a function? 1) Yes 2) No

Answer 1

To figure out if the given relation is a function, we first need to know what a function is:

Function: A relation which relates the element x of set X with a single element of set Y

which means that every value of x can give only one value of y

but we can clearly see from the provided diagram that 5 has 2 possible outputs. Hence, the given relation is NOT a function