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   

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.

*Note: There is an optional IB Practice Questions DOC for students who may be preparing for the IB Exam.