Answer:
x = 3
Explanations
The domain of the function is given as:
Domain = {-12, -6, 3, 15}
The given function is:

Note that the values of x are the elements of the domain, while the values of y for corresponding values of x are the range.
To fill in the table at y = 5, we substitute the value of y into the function and find the corresponding value of x.
