Answer:
(4, 0)
Explanation:
A function is a special relation where each input (x-value) has a single output (y-value).
From inspection of the given graph, we can see that the input x = 4 has two outputs: y = 0 and y = -5.
Therefore, for the graph to represent a function, we need to remove one of the points with an input of x = 4: