Me & my classmate really need help on this question:

The John Deere company has found that the revenue from sales of heavy-duty tractors is a function of the unit price p that it charges. The revenue R is given by the following function.

R(p)= (-1/2)p^2+1520p

What unit price p should be charged to maximize revenue? Give your answer correct to the nearest dollar.

Question

Me & my classmate really need help on this question:

The John Deere company has found that the revenue from sales of heavy-duty tractors is a function of the unit price p that it charges. The revenue R is given by the following function.

R(p)= (-1/2)p^2+1520p

What unit price p should be charged to maximize revenue? Give your answer correct to the nearest dollar.

anonymous · Answer

max at 
$$\frac{-b}{2a}$$ in this case you get 
$$\frac{1520}{1}=1520$$

anonymous · Answer

Also, What is the maximum revenue? Give your answer correct to the nearest dollar

anonymous · Answer

plug 1520 into the revenue function

anonymous · Answer

ohh ok thanks