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a. Create a simplified function that represents the sum of an unknown positive number x and its reciprocal.?

b. For what whole number is the sum of the number and its reciprocal the smallest? In your solution, you may want to include a graph the function.

1 Answer

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  • 5 years ago

    (a) y = x + 1/x.

    (b) 1. Obviously 1 + 1/1 < 2 + 1/2,

    and if x > 2, 1 + 1/1 < x < x + 1/x.

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