Consider the following minimization program: min (x1 - 2)' + x} subject to : 12 2 01 - 401 +4 (4) (a) Draw a graph of the constraint set. (b) Find the solution to the problem using the KKT theorem. Which of the con- straints are binding at the solution (if any)? (c) Is the Lagrange function concave in a? Why why not