A distributor purchases two materials from different suppliers. These materials are configured into mixed loads at the distributor's warehouse, and are then sold to three retailers. Using the information below, calculate the x and y coordinates for the location of the warehouse using the grid technique. Show your step by step calculations.

Suppliers	Rate $/Ton-Mile	Tons	Horizontal Grid Coordinate (x)	Vertical Grid Coordinate (y)
Memphis, TN	$0.80	400	250	600
St. Louis, MO	$0.90	600	225	825
Retailers
Jacksonville, FL	$1.00	200	800	300
New York, NY	$0.90	300	1000	1080
Raleigh, NC	$1.10	400	900	600