Answer:
[tex]C(x) = 5x + 1200[/tex]
Step-by-step explanation:
The cost function is given by:
C(x)=Fixed cost + cost of x widgets.
The fixed cost is $1200
The cost of producing x widgets is 5x.
Therefore the total cost when x widgets are manufactured is
[tex]C(x) = 5x + 1200[/tex]