# Thread: Price function and Revenue...HELP!!!!!

1. ## Price function and Revenue...HELP!!!!!

I just got this problem in my class and I have absolutely no idea how to do this please tell me how to do this or post it. Its my last math project and I just want to finally be done. Thank you!

A music store has determined from a customer survey that when the price of each cd is $x, The number of ther cds sold monthly can be modeled by the price funtion as: p(x)=6250(0.92985)^x Questions: 1. Find Revenue and plot it against price per Cd. 2. Find Marginal Revenue and plot it against price per cd. 3. Evaluate the Marginal Revenues at 12$, $13.75 and$15 and show it on the plot.

2. Originally Posted by Snowboarder670
I just got this problem in my class and I have absolutely no idea how to do this please tell me how to do this or post it. Its my last math project and I just want to finally be done. Thank you!

A music store has determined from a customer survey that when the price of each cd is $x, The number of ther cds sold monthly can be modeled by the price funtion as: p(x)=6250(0.92985)^x Questions: 1. Find Revenue and plot it against price per Cd. Revenue: $R(x)=price\ \times\ sales =x p(x)$ 2. Find Marginal Revenue and plot it against price per cd. If you have done calculus the marginal revenue is: $MR=\left. \frac{dR}{dx}\right|_x$ otherwise it is the increase in revenue when sales increase by $1$ 3. Evaluate the Marginal Revenues at 12$, $13.75 and$15 and show it on the plot.
CB