Complete 2 homework discussion questions Discussion 1 Select one (1) of the following topics for your primary discussion posting: â€¢Identify any challenges you have in setting up a time-series analysis in Excel. Explain what they are and why they are challenging. Identify resources that can help you with that. â€¢Explain how forecasting is used in the real world. Provide a specific example from your own line of work, or a line of work that you find particularly interesting Discussion 2 Discuss LP Models Select one (1) of the following topics for your primary discussion posting: â€¢The objective function always includes all of the decision variables, but that is not necessarily true of the constraints. Explain the difference between the objective function and the constraints. Then, explain why a constraint need not refer to all the variables. â€¢Pick any constraint from any problem in the text, and explain how to plot the line that corresponds to that constraint.