The value of x for which f(x) = -3 is -7. This can be found by looking at the table and finding the x-value that corresponds to an f(x) value of -3.
Look at the table and find the row where f(x) = -3.
The x-value that corresponds to this row is -7.
In this case, the only x-value that corresponds to an f(x) value of -3 is -7.
Therefore, the value of x for which f(x) = -3 is -7.
So the answer is (a).