In this chapter, we will examine how straight lines may be used to model different quantities that you might encounter in business and finance. We will start out by finding the equation of a line that passes through a pair of points and finish with lines that pass as close as possible to a set of several points. This will help us to accomplish the goal for this chapter.

- Analyze applications with linear functions.

The links below will take you to pages that include an ebook and workbook designed to help guide you to solve practice problems. You will also find videos and handouts covering the content.

Section 1 – Linear Functions

Section 2 – Applications of Linear Functions

Section 3 – Approximate Linear Models

Section 4 – Linear Functions of Several Variables