contor plot 3(40p-70q)^2-11(40p-70q)-3((640p-10q+1))-1480p for p=0..1, q=0..1

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.