Using the function concept, it is found that ordered pair (1,3) could be removed from the graph to create a set of ordered pairs that represents a function.
In a function, one value of the input can be related to only one value of the output. That is, each value of x can be associted with at most one value of y.
In this problem, we have ordered pairs (1,1) and (1,3), that is, x = 1 is associated with y = 1 and y = 3, thus we have to remove one of then. Looking at the options, ordered pair (1,3) should be removed.
More can be learned about the function concept at https://brainly.com/question/12463448