Form, manipulate and solve linear inequalities with number lines and graphs. Spot inequalities in real life like taxi fares, cake sales and buying games.

Stephen M. Robinson, Stability Theory for Systems of Inequalities. Part I: Linear Systems, SIAM Journal on Numerical Analysis, Vol. 12, No. 5 (Oct., 1975), pp. 754-769 ...

The minimization of a convex function of variables subject to linear inequalities is discussed briefly in general terms. Dantzig's Simplex Method is extended to yield finite algorithms for minimizing ...