Question

Does each relation reprsent a fuction? choose yes or no

1.(1,3), (2,5), (2,7), (4,9) yes or no
2.(1,3), (2,5), (3,7), (4,9) yes or no
3.(1,3), (1,5), (1,7), (1,9) yes or no
4.(1,3), (2,3), (3,3), (4,3) yes or no

Answer 1

sorry for the questions i am not able to give answer