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x = {(2,4), (3, 4), (4, 4), (5, 4)} Is x a function and why?
No, each set of ordered pairs in this list has the same second element
Yes, there is more than one ordered pair in this list.
Yes, no two ordered pairs in this list has the same first element.
No, there is a limited number of ordered pairs in this list.

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Yes, no two ordered pairs in this list has the same first element.

We know that x is a function but it is not ONE-TO-ONE because the y coordinate of each point is the same or repeated.

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