Question

HELP WILL MEDAL!
Whitch relations are functions and whitch are not?
a. for function and b for not function;
1.{(2, 2), (4, 4), (6, 6),(8, 8)}
2. (0, 3), (3, 5), (5, 6),(8, 4)}
3. {(1, 2), (3, 3), (4, 8),(6, 3)}
4. {(3, 4), (5, 2), (5, 6),(7, 3)}

Answer 1

@pizza12

Answer 2

1,2,3 are funtions becuase no x values repeat

Answer 3

o thank you so much!!!!!!! Again!