Question

State if the relations from A to B are functions If A = {$2,3$} and B = ($2,3,4$); then {$(2,2),(3,3),(3,4)$ }. Write 1 if yes and 0 if No

Answer 1

A function is a set of ordered pairs in which each x-element is from the first set and has only ONE $y$- element associated with it from the Set $B$.
The given relation from $A$ to $B$ is not a function because $3$ from Set $A$ is associated with both $3,4$ from Set $B$.