In this topic, students will learn about functions, an essential concept in algebra. They will begin by exploring the properties of relations and functions, including how to identify functions, and then move on to various types of functions such as linear, quadratic, and exponential functions. Students will also learn about inverses, composite functions, and modeling functions. By the end of this topic, students will have a solid understanding of the characteristics and behaviors of different types of functions and how they can be used to model real-world situations.