Jensen, Affine, Conic, Quasiconvex, Convex Optimization.
Note that 3+(-2) = 1. Hence, the black line is the affine span of the vectors V1 and V2. This means that any combination of vectors V1 and V2 such that the sum of the coefficients is 1 will lie on the black line. This can be proven theoretically as well. Consider any vector that is an affine