Relations+and+Functions+9

9. Solve problems that involve systems of linear equations in two variables, graphically and algebraically. [CN, PS, R, T, V] [ICT: C6–4.1]

Achievement Indicators

9.1 Model a situation, using a system of linear equations. 9.2 Relate a system of linear equations to the context of a problem. 9.3 Determine and verify the solution of a system of linear equations graphically, with and without technology. 9.4 Explain the meaning of the point of intersection of a system of linear equations. 9.5 Determine and verify the solution of a system of linear equations algebraically. 9.6 Explain, using examples, why a system of equations may have no solution, one solution or an infinite number of solutions. 9.7 Explain a strategy to solve a system of linear equations. 9.8 Solve a problem that involves a system of linear equations.