Sometimes a radio program is added to the carrier in such a way that the program signal causes fluctuations in the carrier's frequency. This is called frequency modulation (FM). Another way of sending a radio signal is to make the peaks of the carrier wave bigger or smaller.
Calculating the percentage profit made. It is also possible to work out the percentage profit that is made on a deal. This is done using the profit and the price that something cost originally, before it was sold on (the Cost Price). Percentage Profit = (profit/cost price) x 100%. The next example shows how this is done. Example.
Best Answer: profit = revenue-cost Since you know both the revenue function and the cost function you can find the profit function. P(x) = R(x) - C(x) P(x) = 18x - .001xÂ² - 2500 - 10x P(x) = 8x - .001xÂ² - 2500 To find the maximum of this function, find the derivative, set it equal to zero and solve for x.dd your answer. Maximize Profit-calculus. A lamp has a cost function of C(x) = 2500 10x, where x is the number of units produced and C(x) is in dollars. The revenue function for these lamps is R(x) = 18x - 0.001x^2.