When Lines Collide
Systems of Equations

Today in class we will solve Systems of Linear Equations by interpreting and creating graphs on Excel!


  • Using Microsoft Excel:
    • Create a table for the 2 sets of equations below (Hint: The equations need to be in
y = mx+b format)
      • The x values should range from -5 to +5
    • Using the chart wizard, create an (XY) Scatter Plot for each set of systems
    • Do the lines from each set intersect?  If so, where?  How is a point of intersection related to solving systems of linear equations?
    • Discussion on project

Systems to Graph:

1)  -6x + 3y = -18
      3x - 2y = 10

2)  3x - y = 9
     2x + 3y = 6