##### Jessika Richter

(Lund - Sweden)The short and sweet: I have been a passionate teacher since 2001. I first worked with the National Park Service in Washington (state), then moved to Australia where I completed my DipEd at the University of Melbourne and then taught at Hailebury ...

## Alcohol in Your Body (Rational functions)

** Description:**The functions that model the process of the elimination of alcohol from the body
serve as an introduction to a study of rational functions at an intermediate algebra level.
The lesson focuses on graphs of the functions with an emphasis on interpretation of the
horizontal and vertical asymptotes in the context of elimination of alcohol from the
body. Other mathematics involved is algebraic manipulation of the rational functions,
solution of equations with rational expressions, realistic domain of a function, inverse
functions, and equilibrium state of a dynamic process.

**Last Updated:**

**Subject(s):**- Mathematics
- Mathematics > Algebra

**Educational Level(s):**- College & Beyond

**Instructional Component Type(s):**- Activity: Experiment/Lab

- From: San Diego Area Knowledge Exchange for Developmental Math (SAKE)
- Contributed By: SAKE Owner SAKE Owner

The functions that model the process of the elimination of alcohol from the body serve as an introduction to a study of rational functions at an intermediate algebra level. The lesson focuses on graphs of the functions with an emphasis on interpretation of the horizontal and vertical asymptotes in the context of elimination of alcohol from the body. Other mathematics involved is algebraic manipulation of the rational functions, solution of equations with rational expressions, realistic domain of a function, inverse functions, and equilibrium state of a dynamic process.