
Systems of Linear Equations
Participants
define a linear function in two variables that is expressed in the
form Ax+By = C. They then compare the graphs of two or more functions
of this form, and explore graphically how some, but not all, algebraic
operations leave the solution set of the system unchanged. Participants
also look at traditional methods of solving systems of linear equations
by substitution and by combination.
Professional Development Goals
 Use the function
approach to understand how graphic and algebraic methods relate
when solving systems of equations
 Explore the
effects of algebraic operations on solution sets, using either
individual linear functions or pairs
 Use graphic
representations to model real world applications of systems of
linear functions
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