Which relation is a function? Can someone help me please?!!!

Question

asked Jun 12, 2023 27.9k views

1 Answer

MichaelCMS · Answer 1 · 2023-06-19T14:15:02+0000

Answer:

The second one is a function.

Explanation:

The other 3 have one-to-many mappings.

For example the first relation has 1 mapping to 2, 3, 4 and 5.