The injective function is the reflection of the origin function with reference to the line y = x, and is obtained by swapping (x, y) with the (y, x).
If the graphs of two functions are given, we can identify whether they are inverses of each other. If the graphs of both functions are symmetric with respect to the line y = x, then we say that the two functions are inverses of each other. This is because of the fact that if (x, y) lies on the function, then (y, x) lies on its inverse function.
