Please, help me to solve this task

1 - 2 examples in science, technology or everyday life

2 - functions

3 - graphs for examples

Task:

Polynomial and rational functions can be used to model a wide variety of phenomena of science, technology, and everyday life. Choose one of these sectors and give an example of a polynomial or rational function modeling a situation in that sector. [Hint: see the examples and exercises in the book.] Go to www.desmos.com/calculator, write your equation, or function, and develop your explanation using the properties of graphs