The price p (in dollars) and the quantity x sold of a certain product obey the demand equation p equals negative one ninth x plus 200 . what is the domain of r?

Domain :  

Explanation:

Given :

P =

where;

P is the price in dollars.

x is the quantity sold of a certain product.

The revenue R(x) is given as ;

R(x) =

Therefore R(x) =

To find the domain of R(x), we set R(x)=0

= 0

= 0

Domain of x is :

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you will have $2593.74 in 10 years if you set aside $1,000 at 10%

you will have $9321.91 in 20 years if you set aside $2000 at 8%

you will have $1469.32 in 5 years if you set aside $1000 at 8%

you will have $1296.87 in 10 years if you set aside $500 at 10%

you will have $239.66 in 15 years if you set aside $100 at 6%

you will have $4660.96 in 20 years if you set aside $1000 at 8%