A piano manufacturer has a daily fixed cost of $1,800and a marginal cost of $2,300per piano. Find the costC(x)

of manufacturingxpianos in one day.

C(x) =

Use your function to answer the following questions.

(a) On a given day, what is the cost of manufacturing three pianos?

$

(b) What is the cost of manufacturing the third piano that day?

$

(c) What is the cost of manufacturing the 11th piano that day?

$

(d) What is the variable cost?$

What is the fixed cost?

$

What is the marginal cost?

Graph C as a function x Hint ( See Example 1.)