Question

The function f(x) = 3x + 5,000 represents the amount of money a cell phone screen is being sold for, where x is the number of screens being manufactured. The function g(x) = 20x - 400 represents the cost of production, where x is the number of screens being manufactured. What is (f - g)(200)? Explain.

Answer 1

Step-by-step explanation:

To answer a question like this, refer to the definitions of the functions:

(f-g)(200) is ...

... the difference between the amount of money a cell phone screen is being sold for and the cost of production, when 200 screens are being manufactured.

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The numerical value of (f-g)(200) is ...

f(200) -g(200) = (3·200 +5000) -(20·200 -400) = 5600 -3600

(f-g)(200) = 2000