Question

look at this set of ordered pairs: (5, 15) (9, 13) (8, -16) (10, -15) (9, 16) (11, 16) is this relation a function? yes no

Explanation:

Step1: Identify input values (x-values)

The x-values are: $5, 9, 8, 10, 9, 11$

Step2: Check for repeated x-values

The x-value $9$ appears twice, paired with $13$ and $16$. A function requires each x-value to have only one corresponding y-value.

Answer:

no