This chapter gets under way with a lesson on how to graph and interpret real-world data. From there you will study patterns and sequences (including a study of arithmetic sequences). Then, it is off to understanding functions and function rules, which will contain the all-important lesson on domain, range, and the vertical line test! You will master how to create tables of data, function rules, and graphs given real-world word problems – super important! After interpreting and sketching graphs that describe real-world events or “stories”, you will conclude the chapter with understanding the difference between linear and non-linear functions. Ready? Set? Go start learning the foundations of functions!!!!