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Annual profit functions

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Annual profit in thousands of dollars is given by the function, P(x) =5000 -(1000/(x -1)), where x is the number of items sold in thousands, x > 1.
I need to find out how to come up with this solution? Find the profit for 5 different values of x.
P(x) = 5000 - (1000/(x-1)
P(2) = 5000 - (1000/1) = 4000
P(3) = 5000 - (1000/2) = 4500, etc.

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The expert examines annual profit functions.

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Let x = 2
P(x) =5000 -(1000/(x -1))
P(2) =5000 -(1000/(2 -1)) = 5000 -(1000/1) = 5000 - 1000 = $4,000

Let x = 5
P(x) =5000 -(1000/(x -1))
P(5) =5000 ...

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Sandhya Sharma, MSc
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  • BSc, Meerut University
  • MSc, Meerut University
  • MPhil, Institute of Advanced Studies
  • MSc, AIT
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