Question 260453
You can graph it to help you picture the figure but you must give a mathematical answer. You can't talk about the graph  per se in your answer.
We can see just by looking at the points that the length of AB is the same as the length of CD ie 4
Now you need to show that BC and AD are equal.
You also want to show that the lines (AB and CD) and (BC and AD) are parallel by showing that the slopes are the same.

If the sides are of equal length and are parallel I believe that is enough to show that it is a parallelogram.

Do you know how to do any of that?