Step-by-step explanation
We have a line given by the following function:

The inverse function of f(x) is the function g(x), that satisfies:

To find the inverse function, we replace x by y in the equation of f(x), and then we equal to x and solve for y, we get:

So the inverse function is:

Plotting f(x) and g(x), we get the following graph:
Comparing this graph with the options, we conclude that option A is the correct answer.
Answer
Graph A.