I am just picking numbers that are relatively close to zero on both the negative and the positive side and numbers I like using the Integers because those are relatively easier to work with, much better than if I was using something like negative pi or -1.3 or something crazy like that , so these are just arbitrary points which I am sampling from the domain so that I can get the generalize shape of the, in this case its going to be a curve the generalized shape of the curve and that I can connect the dots.