- Subject:
- Mathematics
- Material Type:
- Module
- Provider:
- Ohio Open Ed Collaborative
- Tags:

- License:
- Creative Commons Attribution-NonCommercial 4.0
- Language:
- English
- Media Formats:
- Text/HTML

# Chapter 2.1 - Exercises

# Khan Academy - Linear Functions

# Khan Academy - Parallel and Perpendicular Lines

# Khan Academy - Slope of a Line

# Khan Academy - Slope Intercept form of a Line

# Khan Academy - Point Slope form of Line

# ORCCA - Parallel and Perpendicular Lines - Original source material, products with readable and accessible math content, and other information freely available at pcc.edu/orcca.

# Linear Functions

# Section 1: Linear Functions

Slope a line and its interpretation as average rate of change are important. The difference quotient is the slope of a secant line joining two points on the graph of a curve. It is important for the precalculus student to be able to compute and make sense of difference quotient for various types of functions. Additionally, students should be able to find equations of lines under various contexts.

Linear Functions are most basic functions in mathematics. They are simple to formulate and evaluate mathematically. Linear functions have many applications in calculus in general, and in business, economics, psychology, etc. in particular.

**Learning Objectives**

- Domain and range
- Interpretation of slope as average rate of change
- Intercepts and graph
- Finding equation of line using slope and intercept
- Finding equation of a line using two points in the plane
- Properties of parallel and perpendicular lines
- Finding equations of parallel and perpendicular lines
- Modeling with linear with functions