**Title:** Drug Filtering (Exponential Decay)

**Description:**
In this lesson, students observe a model of exponential decay, and how kidneys filter their blood. They will calculate the amount of a drug in the body over a period of time. Then, they will make and analyze the graphical representation of this exponential function.

**Standard(s): **

[MA2013] AL1 (9-12) 32: Write a function defined by an expression in different but equivalent forms to reveal and explain different properties of the function. [F-IF8]

[MA2013] AL1 (9-12) 37: Distinguish between situations that can be modeled with linear functions and with exponential functions. [F-LE1]

[MA2013] ALT (9-12) 33: Write a function that describes a relationship between two quantities.* [F-BF1]