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Solve Systems Graphically (With Calculator) Sketch the 3 possible solution scenarios of a system of linear equations. Reg Algebra 2 – Unit 2.

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Presentation on theme: "Solve Systems Graphically (With Calculator) Sketch the 3 possible solution scenarios of a system of linear equations. Reg Algebra 2 – Unit 2."— Presentation transcript:

1 Solve Systems Graphically (With Calculator) Sketch the 3 possible solution scenarios of a system of linear equations. Reg Algebra 2 – Unit 2

2 Solve by Graphing Why would these not be easy to solve graphically (by hand)?

3 Solve Graphically (with Calculator) Rent-A-Truck charges $29.95 per day and $0.43 per mile to rent a vehicle and Borrow-My-Truck charges $45.00 per day and $0.32 per mile. For what number of miles will the rental cost be the same at both companies? Set up the system of equations.

4 Solve Graphically (with Calculator) Enter the equation for Rent-A-Truck into y1 and enter the equation for Borrow-My-Truck intoy2. Adjust your window setting so that you can see the intersection point on your calculator screen. Sketch you graph. Find the intersection using the following steps: o Press the 2 nd key, then the TRACE key. o You want to go to number 5 for intersect. o Next, press ENTER three times; for first curve, second curve and for the calculator to estimate the solution. o Label the intersection point on your graph.

5 Solve Graphically (with Calculator) What does the point of intersection represent in the truck rental situation? Which truck rental business offers the better deal?


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