Cannon Precision Instruments makes an automatic electronic...

Cannon Precision Instruments makes an automatic electronic flash with Thyrister circuitry. The estimated marginal profit associated with producing and selling these electronic flashes is $$P^{\prime}(x)=-0.004 x+20$$ dollars per unit per month when the production level is $x$ units per month. Cannon's fixed cost for producing and selling these electronic flashes is $\$ 16,000$ /month. At what level of production does Cannon realize a maximum profit? What is the maximum monthly profit?

Cannon Precision Instruments makes an automatic electronic flash with Thyrister circuitry. The estimated marginal profit associated with producing and selling these electronic flashes is
$$P^{\prime}(x)=-0.004 x+20$$
dollars per unit per month when the production level is $x$ units per month. Cannon's fixed cost for producing and selling these electronic flashes is $\$ 16,000$ /month. At what level of production does Cannon realize a maximum profit? What is the maximum monthly profit?

Key Concepts

Fixed Costs

Fixed costs represent expenses that do not change with the level of production. In the context of profit analysis, fixed costs are subtracted from revenues or incorporated as a constant when recovering the profit function via integration. They play a crucial role in determining actual profitability as they impact the total profit even when production levels vary.

Integration to Recover the Profit Function

Since the marginal profit function is the derivative of the profit function, the original profit function can be recovered by integrating the marginal profit function. This integration process requires determining an integration constant, which is typically found using additional information such as fixed costs or a specific profit value at a given production level.

Marginal Profit Function

The marginal profit function represents the rate of change of profit with respect to the production level. It is essentially the derivative of the profit function and indicates how profit changes for a small change in production. Understanding the marginal profit function is crucial for determining when the profit will be maximized or minimized.

Optimization Using Derivatives

In calculus, to find the maximum or minimum value of a function, you set its derivative to zero and solve for the variable. This technique is used in profit maximization by finding the production level at which the marginal profit function equals zero. This point is a candidate for maximum profit when considering the concavity of the profit function.

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