To express the relation as a table, we'll first identify the pairs you've provided, including the blank that needs to be filled. It appears you might want to include an additional relationship involving the number 5. However, assuming you just want to list the pairs you have provided, the table would look like this:
| x | y | |----|----| | -4 | 5 | | 18 | 15 | | 18 | 5 |
If you meant to imply something else with the "5" in the input, please clarify, and I can adjust the table accordingly!