Answer:
Non-function
Explanation:
A function is a relation from a set of inputs to give a set of outputs.
In a function a particular input can only result in one output only.
Which means one input cannot generate more than one output.
For the given question;
[tex]\mleft\{\mleft(-12,3\mright),(-5,4),(-6,3),(8,-9),(-6,2),(1,7)\mright\}[/tex]We can observe that the output at the input -6 is more than one.
[tex]\begin{gathered} (-6,3) \\ \text{and} \\ (-6,2) \end{gathered}[/tex]A single input -6 produces two outputs 3 and 2.
So, since one input produces more than one output, the data is not a function.
Therefore, It is not a function