Suppose a company incurs a cost of $1.500 per unit if they increase production and a cost of $1,000 per unit if they decrease production, what is the best way to maintain linearity? One decision variable representing the amount of change in production. Use an IF() statement to check the increase or decrease condition Two binary decision variables, one set to 1 for an increased production and the other set to 1 for decreased production. Two decision variables. one representing amount of increased production and other for amount of decreased production