First post on this site. Help needed:)

[miltonfriedmanlives]

Hi all, this is my first post on this site, so thank you in advance for any help

"A retailer determines that the demand x for a products is proportional to the square of the price p. When the price is $ 10, the demand is 250.
a. Find the revenue $ as a function of the price x.

b. Approximate the change in revenue for a one unit increase in sales when x = 260."

for a. I have R = 250p + 10p^2

I am not sure what to do with b.

Thanks a lot.

 

[Deleted member 4993]

Hi all, this is my first post on this site, so thank you in advance for any help

"A retailer determines that the demand x for a products is proportional to the square of the price p. When the price is $ 10, the demand is 250.
a. Find the revenue $ as a function of the price x.

b. Approximate the change in revenue for a one unit increase in sales when x = 260."

for a. I have R = 250p + 10p^2<<<< Incorrect

What is the relationship between revenue and price & demand?

I am not sure what to do with b.

Thanks a lot.