A single facility is needed to meet the demands of four markets.

The locations and demands of these four markets are shown below.

Show all work with formulas, please

Market	Coordinates	Demand
A B C D	(8, 6) (4, 12) (3, 2) (9, 6)	10 15 10 6

1. Use the information from Table 10.1. If the facility must be located at one of these four markets, which of the four locations is most desirable, assuming Euclidean distance?

2. Use the information from Table 10.1. If the facility must be located at one of these four markets, which of the four locations is most desirable, assuming rectilinear distance?