Question

Which relation is also a function?

{ (1,0), (2,2), (1,3) }


{ (1, 2), (1, 4), (2, 6) }


{ (2, 1), (2, 2), (2, 3) }


{ (0, 0), (4, 0), (6, 0) }

Answer 1

{ (0, 0), (4, 0), (6, 0) }

Explanation:

In order to be a function, ordered pairs must have values of x, or the domain, that are different and do not repeat.