Find the maximum value of the objective function

Question

z = 19x + 7y,
subject to the following constraints. (See Example 2.)
3x + 2y ≤ 18
6x + 2y ≤ 30
  x ≥ 0, y ≥ 0

Answer 1

there are many nice linear programming calculators online. One you can use to check your work is at

http://www.zweigmedia.com/RealWorld/LPGrapher/lpg.html