Suppose $f : \mathbf { N } \rightarrow \mathbf { N }$

question 24

Short Answer

Suppose $f : \mathbf { N } \rightarrow \mathbf { N }$ has the rule $f ( n ) = 4 n + 1$ . Detremine whether $f$ is into $\mathbf { N }$ .

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Definitions:

Sacrum

A large, triangular bone at the base of the spine, where it is inserted between the two hip bones.

Anorectal Junction

The area where the anal canal meets the rectum, important in the study of gastrointestinal function and disorders.

Rectum

The final section of the large intestine, terminating at the anus, where feces are stored before being expelled.

Anal Canal

The final segment of the digestive tract through which feces are excreted from the body.