You operate a gaming Website, www. mudbeast. net, where users must pay a small fee to log on. When you charged $4 the demand was 580 log-ons per month. When you lowered the price to $3.50, the demand increased to 870 log-ons per month. Construct a linear demand function for your Web site and hence obtain the monthly revenue R as a function of the log-on fee x. R(x) = Your Internet provider charges you a monthly fee of $50 to maintain your site. Express your monthly profit Pas a function of the log-on fee x. Determine the log-on fee you should charge to obtain the largest possible monthly profit. x = What is the largest possible monthly profit?