1. determine if the set of ordered pairs is a relation or a function.
{(0,0), (0, 2), (0, 3), (0,4)}

This is just a relation.

Step-by-step explanation:

It is easy to see if a set of ordered pairs is a relation or a relation that is a function.

If all the points are distinct, then you just have to look at the -coordinates.

If all the -coordinates are different, then it is a function. Otherwise, it is a just a relation.

So this cannot be a function because there is at least two different points that have .

19.side- angle- side

20. angle- side- angle

step-by-step explanation:

ian gonna lie that is way to much