A = (-3.8023999840702096, 3.7026940622478017)
B = (2.8759492615043505, 1.4964536864776368)
C = (6.374132199662453, 3.861702377618624)
D = (9.792810980135144, 6.644347896608021)
PolyReg = FitPoly({A, B, C, D}, 2)