The marketing research department for a computer company used a large city to test market their new product.

They found that the relationship between the pricep and the demand x was given approximately by
p = 1161 - 0.15 x^2.

FindR(x) , the revenue function.

They found that the relationship between the price

Find

Now use the revenue function to do the following:

(A) Find the average of the

Note: If there are no local maxima, enter -1000.

Average of

(B) Find the average of the

Note: If there are no local minima, enter -1000.

Average of

(C) Use interval notation to indicate where

** Note: ** Enter 'I' for

If you have extra boxes, fill each in with an 'x'.

Concave up:

(D) Use interval notation to indicate where

Concave down:

You can earn partial credit on this problem.