Final answer:
The provided function is neither an even nor an odd function because it has unique outputs for each input value of -2, -8, and 9.
Step-by-step explanation:
An even function is symmetric about the y-axis, meaning that for any input value x, the output values will be the same magnitude but with opposite signs.
An odd function is generated by reflecting the function about the y-axis and then about the x-axis, resulting in outputs that are the negative of each other for any input value x. In the given question, the function has unique outputs for each input value of -2, -8, and 9, which means that it is neither an even nor an odd function.