I should have detected the engineer tone in your previous posts! My bad. I roomed with a few in college, smart guys, just a little too proud of themselves. You still didn't explain your previous post about teachers... Is that what qualifies me as a commie? because I teach? Or just you dont agree with me? Since were seeing who can piss farther here, I have a B.S. in Psychology, B.A. in education, and a M Ed. (mathematics) plus numerous other credits beyond that. As for the graphing piece, nice job, I underestimated you based on your previous posts. No calculators here though... I'll bet you've got one fired up on your desk right now though, and a pocket protector just full of sharp pencils to boot.
Heres another other topic we can discuss if quadratics isn't your cup of tea... This should be easy for a mind like yours! How about relating mathematics to guide placement on fishing rods? They aren't just randomly placed now are they? Your turn to pi$$!

Back to you my lil genius...