Answer:
B
Explanation:
We are given the function:

And we want to determine the value of:

Let this value equal a. In other words:

Then by the definition of inverse functions:

Hence:

Solve for a:

By the Zero Product Property:

Hence:

Thus, f(9) = 225. Consequently, f⁻¹(225) = 9.
In conclusion, our answer is B.