Q$3)$ A Supply chain manager is considering opening a new factory in Abha, Jizan or Jeddah to produce high$-$quality products. He has collected the following costs data: Location Annual Fixed cost & Per$-$Unit Costs:

Location, Annual cost, Variable cost

$\backslash$table$[[$Abha$,$SR $500,,$SR$11],[$Jizan$,$SR $1000,,$SR$7],[$Jeddah$,$SR $1700,,$SR$4]]$

a$)$ Draw the total cost lines for each location.

b$)$ Find the intersection for each pairs.