The price equation
.
(a).
\The revenue function
is
.
Substitute
in
.


The revenue function
.
(b)
\
The domain of the function
.


and 
and
.
The domain of the function is
.
(c).
\Find the revenue when
units are sold.
Substitute
in the function
.




The revenue is $
.
(d).
\The revenue function is in quadratic form.The revenue
is maximum, when the price is
.


Where
and
.

units.
The Maximum revenue is substitute
in the fucntion
.




The maximum revenue is $
.
(e).
\Find the price to get the company maximum revenue.
\The fucntion is
.
Maximum revenue is $
. and the no.of units are
.
Hence the price of the company to charge the maximum revenue is
.

The price is $
.
(a).
(b). The domain of the function is
.
(c).$
.
(d).
units and The maximum revenue is $
.
(e).The price is $
.