To graph the ordered pairs on a coordinate plane, we must recall that the first value corresponds to the horizontal axis — the axis — and the second one to the vertical axis — the axis.
Now let's determine whether the relation is a function. If the relation is a function, any given -value can only have one corresponding -value. However, examining the ordered pairs, we can see that two of them have the same -values but different -values. Thus, the same value is paired with two different values. This means that the relation is not a function.