We began our work in Chapter 3 today. Chapter 3 deals with systems of equations, also called 2 equations, 2 unknowns. We will take 2 (or more) equations involving 2 variables and solve for both. To introduce the idea today, I will show students how to find the solution by graphing and how to check whether an ordered pair is a solution. I will introduce one of the algebraic methods of solving to them today, the substitution method. After today students should be able to:1) Check ordered pairs to see if they are solutions to systems of equations
2) Solve a system of equations by graphing both equations
3) Give the number of solutions to a system of equations from the graph
4) Use the substitution method to solve a system of equations
Students will practice in class with this worksheet. Here is a link for a video demonstration of the substitution method.
Homework:
page 143 #'s 12-18 even, 32-40 all & page 152 #'s 11-13,16,18,19,22
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