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1.7 Notes SB filled in 2nd.notebook
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September 28, 2016
1.7 Solve Systems of Linear Equations
• I can solve systems of linear equations graphically.
• I can solve systems of linear equations algebraically.
• I can solve systems of linear equations with no solutions or infinite solutions.
• I can solve real world situations involving systems of linear equations.
Determine if the ordered pair (1, 1) is a solution to the system of linear equations.
1.7 Notes SB filled in 2nd.notebook
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September 28, 2016
a. b.
♦I can solve systems of linear equations graphically.♦Example 1: Solve each system by graphing. Check your answer algebraically.
Check: Check:
a. b.
♦I can solve systems of linear equations graphically.♦Checkpoint: Solve each system by graphing. Check your answer algebraically.
Check: Check:
1.7 Notes SB filled in 2nd.notebook
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September 28, 2016
♦I can solve systems of linear equations algebraically.♦
Example 2: Solve the system of equations using SUBSTITUTION.
a. b.
♦I can solve systems of linear equations algebraically.♦
Example 2: Solve the system of equations using ELIMINATION.
c. d.
1.7 Notes SB filled in 2nd.notebook
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September 28, 2016
♦I can solve systems of linear equations algebraically.♦Checkpoint: Solve the system of equations using either method.a. b.
♦I can solve systems of linear equations with no solutions or infinite solutions.♦Example 3: Decide which method would be “easiest” to solve the system of linear equations, then solve.
a. b.
Describe the graphs of these two types of solutions.
1.7 Notes SB filled in 2nd.notebook
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September 28, 2016
Example 4: An express bus runs once a day to take tourists outside of the town center. The bus holds at most 50 passengers. It costs $3 for a oneway ticket, and $5 for a twoway ticket. The bus made a total of $212 from one trip. How many passengers bought oneway tickets?
♦I can solve real world situations involving systems of linear equations.♦
1.7 Notes SB filled in 2nd.notebook
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September 28, 2016
