deermine whether each graph represents y as a function of x

[charliesazn4lyf]

it gives us a graph and it asks us that question

i dont understand the question, much less how to find the answer

 

[stapel]

Hint: You might want to review the discussion about the "Vertical Line Test", where they showed (in the book and/or in class) how to tell, from a graph, whether the picture showed a function or just a relation.

Eliz.