I believe one of the relationships between x and y in a nonlinear graph will be the slope of each point will be unproportional. Therefore, it will create a nonstraight line (usually
http://wiki.answers.com/Q/What_is_the_relationship...

1. Find the Xintercept. Do this by setting Y in your equation to zero and solving for X. If your linear equation is 2X  3Y = 12, by setting Y to 0, you have 2X = 12 or X = 6. The
http://www.ehow.com/how_8182100_graphlinearequat...

Data sets that show a clear linear relationship
http://www.chacha.com/question/whichdatasetshow...

Assuming Leif's interpretation, I would surmise that, while your eigenvalues are correct, the professor wanted you to show work and actually write the eigenvectors explicitly. Embed
http://www.quora.com/Mathematics/Whataretheeige...
