We warned you about clearing denominators in the quality constraints. This problem illustrates what can happen if you don’t do so. a. Implement the quality constraints as indicated in Inequality (4.3)...

We warned you about clearing denominators in the quality constraints. This problem illustrates what can happen if you don’t do so.

a. Implement the quality constraints as indicated in Inequality (4.3) of the text. Then run Solver with the Simplex LP method. What happens? What if you use the GRG Nonlinear method instead?

b. Repeat part a, but increase the selling price of heating oil to $120 per barrel. What happens now? Does it matter whether you use the Simplex LP method, as opposed to the GRG Nonlinear method? Why?