A chain of home health care firms in Ontario needs to locate…

A chain of home health care firms in Ontario needs to locate a central office from which to conduct internal audits and other periodic reviews of its facilities. These facilities are scattered throughout the province, as detailed in the following table. Each site, except for Toronto, will be visited three times each year by a team of workers, who will drive from the central office to the site. Toronto will be visited five times a year.  City d(x) d(y) Visits (Q) Oshawa 9.2 3.5 3 Richmond 7.3 2.5 3 Toronto 7.8 1.4 5 North Bay 5 8.4 3 Tobermory 2.8 6.5 3 Guelph 5.5 2.4 3 Waterloo 5 3.6 3 Sudbury 3.8 8.5 3 Required: a. What coordinates represent a good location for this office? b. List two other factors that may affect this location decision.