Skip to main content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.

MATH 1111 - College Algebra: 3.1 Linear Functions

3.1 Linear Functions

At the end of this section students will be able to:

  • Find the slope of a line
  • Determine the equation of a line in point-slope form
  • Determine the equation of a line in slope-intercept form
  • Find the x- and y-intercepts of a line
  • Graph a linear function
  • Solve applications using linear functions

Required Reading

2.1 Linear Functions

Stitz-Zeager College Algebra - pages 151-162

Practice Exercises

Stitz-Zeager College Algebra - pages 163-168

Answers to practice exercises can be found on pages 169-172.

Supplemental Resources

Slope of a Line (tutorial): West Texas A&M University Virtual Math Lab (College Algebra Tutorial 25)

Equations of Lines (tutorial): West Texas A&M University Virtual Math Lab (College Algebra Tutorial 26)

Graphing Lines (tutorial): West Texas A&M University Virtual Math Lab (College Algebra Tutorial 27)

 

Finding the x- and y-intercepts:

 

Graphing Linear Functions Using Slope:

 

Applications of Linear Functions (Simple Interest Formula):