Answer:
It's only a function
Step-by-step explanation:
Why it's only a function is that it contains the notation of a function which is F(x)=Y and the F(x) stands for the inputs vaules or values of X which also called the Domains while when it's Y=X^2-9X stands for the output values or values of Y which is also called the Range. And within the above question you can also find the inverse of a function.
