Explain why the formula for the revenue function is equal to revenue minus cost

The formula for the revenue function is equal to revenue minus cost because revenue represents the total amount of money earned from selling goods or services, while cost represents the total expenses incurred in producing those goods or services. Therefore, the difference between revenue and cost gives the profit earned by a business. Mathematically, the revenue function is expressed as R(x) = p(x) * x, where p(x) is the price per unit and x is the number of units sold. The cost function is expressed as C(x) = f(x) + v(x), where f(x) is the fixed cost and v(x) is the variable cost. Thus, the profit function can be expressed as P(x) = R(x) - C(x) = p(x) * x - f(x) - v(x). Therefore, the formula for the revenue function is equal to revenue minus cost