The cost in dollars of making x items is given by the function C(x)=10x+900 .



a. The fixed cost is determined when zero items are produced. Find the fixed cost for this item.



Fixed cost =$



b. What is the cost of making 25 items?



C(25)=$



c. Suppose the maximum cost allowed is $1900 . What are the domain and range of the cost function, C(x) ?

Domain:
Range: