What is the equation of the line that all inverses reflect across?

So if you're asked to graph a function and its inverse, all you have to do is graph the function and then switch all x and y values in each point to graph the inverse. Just look at all those values switching places from the f(x) function to its inverse g(x) (and back again), reflected over the line y = x.

your answer is option c.

the easiest way to do these would be to solve the equations. if you can solve the equation than you can solve these problems.