Algebra Explained
Chapter 4
Graphing Lines

Chapter Summary

Chapter 4 focuses on graphing linear equations, writing equations of lines, slope and the x,y coordinate system. Jamie takes off in her airplane to help explain slope and build the foundation for the concepts needed to write and graph linear equations on the x,y coordinate "plane."

Jamie takes flight to teach slope and lines

Carter hits the "slopes."
Carter hits the slopes.

Carter risks it all to help teach slope.
Carter goes downhill to teach slope.

Slope is rise over run
Slope equals rise over run


  • The x, y coordinate system
  • Slope
  • Graphing lines
  • Writing the equations of lines
  • Review of fractions
  • Review of order of operations

Real World Connections

  • Air Flight
  • Sledding
  • Darts