Which of the following sets of ordered pairs in the form (x, y) represent a function of x? 3 points {(2,4), (-2,4), (5,3), (7,4)} {(3,,,2), (-6,2)} {(9,2), (-3,4), (-3,1), (7,-4)} {(5,,-,-4), (6,1) show work

the answer should be ai hope this

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.