# Homework Help: Explaining the meaning of a derivative

1. Oct 30, 2011

### Dramacon

1. The problem statement, all variables and given/known data
As the result of a survey, the marketing director of a company found that the revenue, $R, from selling n produced items at$P is given by the rule R=30P-2P^2

Find dR/dP and explain what it means
2. Relevant equations
I've found the dR/dP, however, I'm unsure of what this means in terms of the criteria in the question

3. The attempt at a solution

dR/dP= 30-4P

Edit:
Don't worry! Just solved it, it's rate of change of revenue with respect to price. I'm so silly

Last edited: Oct 30, 2011
2. Oct 30, 2011

### LCKurtz

Have you studied the concept of marginal revenue?