Question

F = {(-1, 2), (3, 2), (4, 2), (0, 2)} Is F a function and why/why not?

Yes, no two ordered pairs in this list have the same first coordinate.
No, each set of ordered pairs in this list has the same second coordinate.
Yes, there is more than one ordered pair in this list.
No, there is a limited number of ordered pairs in this list.

Answer 1

Yes, no two ordered pairs in this list have the same first coordinate

Explanation:

we know that

A function is: a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.

That means that there can be only one ordered pair with the same value of x.

therefore

In this problem F is a function, because all the ordered pairs of the list don't have the same first coordinate