Determine Whether the Rule Describes a Function with the Given $$f : \mathbf { N } \rightarrow \mathbf { N } \text { where } f ( n ) = \sqrt { n }$$

Short Answer

determine whether the rule describes a function with the given domain and codomain.
- $$f : \mathbf { N } \rightarrow \mathbf { N } \text { where } f ( n ) = \sqrt { n }$$