ANSWER:
it is a function
Explanation:
We have the following points
![\begin{gathered} (-6,-6) \\ (-3,-7) \\ (3,-8) \\ (5,-9) \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/gvt00e8bbz07ujtb2k2o3wid11mq26oaom.png)
A relation is a correspondence of elements between two sets.
A function is a relation where each element of a set (A) corresponds to one and only one element of another set (B).
In this case we can observe that for each value of x corresponds to a single element of y, therefore, yes, it is a function