In the picture below you will see what my class mates and I did all by our self's without any help from the teacher. This was the very first problem which we created for our planets using from little help to no help at all from the teacher
In the picture you will see that the two lines (which are our planets) intercept at exactly (5,20) Here is the picture!
(Sorry for picture being sideways, I tried many was to change it but it just did not want to work)