http://www.wolframalpha.com/input/?i=y+%3D+sqrt%28x%28x^2-2x%29%29 http://www.wolframalpha.com/input/?i=y+%3D+sqrt%28x%28x^2-2x... The equation there has five

http://www.wolframalpha.com/input/?i=y+%3D+sqrt%28x%28x^2-2x%29%29 http://www.wolframalpha.com/input/?i=y+%3D+sqrt%28x%28x^2-2x... The equation there has five different variables, you can generally only graph expressions with two. In the above link I've eliminated them, but if you play around with their values instead you'd be able to produce a more interesting graph. I think. I may be misunderstanding this.