Which relation is a function of x? A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 2, 2, 3. Column 2 is labeled y with entries 7, negative 9, 8, negative 4.
Image with alt text: A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 2, 2, 3. Column 2 is labeled y with entries 7, negative 9, 8, negative 4.

A 2-column table with 4 rows. Column 1 is labeled x with entries negative 8, negative 8, 1, 1. Column 2 is labeled y with entries negative 9, 2, negative 9, 2.
Image with alt text: A 2-column table with 4 rows. Column 1 is labeled x with entries negative 8, negative 8, 1, 1. Column 2 is labeled y with entries negative 9, 2, negative 9, 2.

A 2-column table with 4 rows. Column 1 is labeled x with entries negative 5, negative 5, negative 5, negative 5. Column 2 is labeled y with entries 1, 7, negative 9, 2.
Image with alt text: A 2-column table with 4 rows. Column 1 is labeled x with entries negative 5, negative 5, negative 5, negative 5. Column 2 is labeled y with entries 1, 7, negative 9, 2.

A 2-column table with 4 rows. Column 1 is labeled x with entries negative 3, negative 2, 4, 7. Column 2 is labeled y with entries negative 1, 5, 0, negative 1.