

OpenStax Precalculus text, modified for MAT 206-1202, Professor Margaret Dean, Mathematics Department, BMCC/CUNY
• ## 0: Review - Linear Equations in 2 Variables

Recall that a function is a relation that assigns to every element in the domain exactly one element in the range. Linear functions are a specific type of function that can be used to model many real-world applications, such as plant growth over time. In this chapter, we will explore linear functions, their graphs, and how to relate them to data.
• ## 1: Solving Linear Equations

In this chapter, you will explore linear equations, develop a strategy for solving them, and relate them to real-world situations.

• ## 3: Polynomial and Rational Functions

In this chapter, we will learn about these concepts and discover how mathematics can be used in such applications.
• ## 4: Exponential and Logarithmic Functions

In this chapter, we will explore exponential functions, which can be used for, among other things, modeling growth patterns such as those found in bacteria. We will also investigate logarithmic functions, which are closely related to exponential functions. Both types of functions have numerous real-world applications when it comes to modeling and interpreting data.
• ## 5: Trigonometric Functions

The trigonometric functions are functions of an angle. and relate the angles of a triangle to the lengths of its sides. They are important in the study of triangles and modeling periodic phenomena, among many other applications.
• ## 6: Periodic Functions

In this chapter, we will investigate graphs of sine, cosine, and other trigonometric functions.
• ## 7: Trigonometric Identities and Equations

In this chapter, we discuss how to manipulate trigonometric equations algebraically by applying various formulas and trigonometric identities. We will also investigate some of the ways that trigonometric equations are used to model real-life phenomena.
• ## 9: Systems of Equations and Inequalities

In this chapter, we will investigate matrices and their inverses, and various ways to use matrices to solve systems of equations. First, however, we will study systems of equations on their own: linear and nonlinear, and then partial fractions.