I would start by graphing .Set up a graph and use these following points to find your (X,Y).Start by plugging 1 for X, then 2 for X,then 3 for X, then 0 for X.When you are done with those plug in the negative of these numbers to see what happens in the second quadrant.Each input gives you the Y .From there you can see what your domain and range is doing.example: when x=1 y =2 graph this point and so on.