HELP ASAP PLEASE AND THANK YOU




Select Is a Function or Is not a Function to correctly classify each relation.



{(3,7),(3,6),(5,4),(4,7)}


{(1,5),(3,5),(4,6),(6,4)}


{(2,3),(4,2),(4,6),(5,8)}


{(0,4),(3,2),(4,2),(6,5)}