For the following function, a) determine whether it is one-to-one; b) if it is one-to-one, find its inverse function. f(x)=x+9

Question

For the following function, a) determine whether it is one-to-one; b) if it is one-to-one, find its inverse function.
f(x)=x+9
Is the given function a one-to-one function? Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. Yes, the function is one-to-one. The inverse function is f(x) =
(Simplify your answer.)
B. No, the the function is not one-to-one.

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