For the following example:

a$)$ Graph the total cost line

b$)$ Over what range of annual volume is each facility going to have a competitive advantage?

$\backslash$table$[[,$Per$-$Unit Costs$],[$Location$,\backslash$table$[[$Fixed Cost Per$],[$Year$]],$Material,Variable labor,overhead$],[$Digby$,$$$20,000,$$$0\mathrm{.}2,$$$0\mathrm{.}4,$$$0\mathrm{.}4$