Suppose the revenue (in dollars) from the sale of x units of a product is given by the equation . Find the marginal revenue when 45 units are sold. Round your answer to the nearest dollar.

Question

Suppose the revenue (in dollars) from the sale of x units of a product is given by the equation  . Find the marginal revenue when 45 units are sold. Round your answer to the nearest dollar. ​

Quizplus · Accepted Answer

To find the marginal revenue, we need to take the derivative of the revenue function with respect to x:

R'(x) = 500 - 20x

Then, we can evaluate this at x = 45:

R'(45) = 500 - 20(45) = $100

Rounding to the nearest dollar gives us choice C as the correct answer.

Suppose the Revenue (In Dollars) from the Sale of X