A box of pencils costs $10. The total cost (c) as a function of the number of boxes (b) is expressed as c = f (b) = 10b. What is the domain of this function?

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Mathematics

Leilani Obrien

31 July, 19:09

A box of pencils costs $10. The total cost (c) as a function of the number of boxes (b) is expressed as c = f (b) = 10b. What is the domain of this function?

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Dominic Chandler · Answer 1

The function is c (b) = 10b. The domain is the possible set of values that can take the independent function, this is b. Given that b refers to a number of boxes, which should be a non negative whole number, it may be any natural number, this is 0, 1, 2, 3, 4, 5, ... and you can express the domain as the set of the natural numbers. Answer: the domain is the set of the natural numbers.