Hey everyone, I was wondering what you could tell me about the relationship between hyperbolic paraboloids. I have listed a set of 3 equations and was wondering what I can do with them? Can I solve for z, can I get the intersection of the equations? Can I get generalized solution of any kind? What does all three equations existing in the same domain mean (what would it look like to plot all of them in 3d, what information would it garner?). The coefficents are irrelevant, I am wondering about the type of equation, listed below is an example set. 7*x*y +15y +11x + 4 = z 7*x*y +26y +57x + 27 = z 7*x*y +72y +84x + 81 = z Could you just throw some ideas at me, please. Thank you!!