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    • 2 years ago

    Can the codomain of a function not include image points that are in the range. For instance, f: R---> [0,Infinity) where f(x)==x. See the codomain is only from 0 to infinity, but the range can include -1 for example and other negative numbers. So I guess this means the range is bigger than the codomain. Can that ever happen? If so, why can it happen??????

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    1. Jemurray3
      • 2 years ago
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      No. The range of a function is a subset of its codomain.

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