Education Technology

Which Garage is Better- IB

Activity Overview

In this activity for the TI-84 family, students are to find the solution to a system of linear equations using technology. They are presented with a problem about parking lot fees.


  • Students will find the solution to a system of linear equations by hand.
  • Students will use the TI-84 Plus CE to graph a linear system in two variables and find the intersection point(s).
  • Students will create and graph linear piecewise functions.
  • Students will try to make a connection with how to understand these topics in IB Mathematics courses and on their final assessments.


  • linear system                  
  • piecewise function   

About the Lesson

This activity uses the TI-84 family handhelds as an aid to the problems, specifically graphing and analyzing piecewise and linear functions. This activity serves as a good lesson to culminate solving systems using technology.