Consider the region given by 1 x y 28 2x y z 2 x y z 0 a Formulate the problem using slack variables s 0 s 0 and s320 Write down the basic solution obtained by choosing the slack variables as pivots Enter in the form z y z 81 82 83 b Is this a feasible solution True False c Write down the basic solution obtained by choosing z 51 82 as pivots Enter in the form x y z 81 82 83 d Is this a feasible solution O True False e Write down the basic solution obtained by choosing x y z as pivots Enter in the form x y z 81 82 83 1 Is this a feasible solution True False