Answer the question:

 

There are 9 bakery shops that are located in a city that sell a specific sweet that is baked by main bakehouse and then send to these shops. The location of the bakery shops and the number of trips per day to the main bakehouse are given in the following table. Use an appropriate method to find the optimal location of the main bakehouse. Number of X- Y- axis axis trips/day 10 3 5 15 14 6 13 5 7 4 9 8 3 11 6 7 13 5 11 4 4 5 7 2 8 12 7