Module 9: Writing Linear Equations

a graph of the line

Line t can be represented by the equation y = 3x − 5.

The equation of a line can be written in several forms. One of the forms that you may be most familiar with is slope-intercept form: y = mx + b, where m represents the slope of the line and b represents the y-intercept of the line. As you progress through this module, you will learn how to write the equation of a line in two additional forms: point-slope form and standard form. You will also investigate parallel and perpendicular lines, and learn how to write equations to represent these types of lines, as well.

Getting Started

Getting Started IconPenalty Shootout InteractivityHow much do you remember about slope? What do you recall about the y = mx + b form of a linear equation? Take a few moments to warm up your skills solving problems involving equations of lines. Click the player button to get started.

 

 

 

Key Vocabulary


To view the definitions for these key vocabulary terms, visit the course glossary.

 

dependent variable
independent variable
linear equation
linear function
parallel lines
perpendicular lines
point-slope form
slope
slope-intercept form
standard form of a linear equation
x-intercept
y-intercept