More blep sorrryryryuiwyruyeurweyruy

A

Step-by-step explanation:

Desmo

I belive that the correct answer would be option A

e=23

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.