Answer: The diagram is below
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Step-by-step explanation:
A function is a collection of points. Usually those points are connected with some kind of line or curve. In this case, we have a finite set of disconnected points as separate islands of sorts.
Any point is of the form (x,y). The inverse of this simply involves swapping the positions of the x and y coordinates. So if for example (0,3) is on f(x), then (3,0) is on the inverse.
We'll have a black filled in circle at (0,3) and a white open hole at (3,0)
This process is carried out for the remaining other points on f(x).
Check out the diagram below. Take note that the line y = x is the mirror line between any point and its corresponding inverse.