Graphing Systems of Linear Equations

Mr. Bean's lesson covers graphing systems of equations, focusing on using a TI-83 or TI-84 calculator. The video explains different types of solutions: one solution, no solution, and infinite solutions. It provides examples of graphing these systems by hand and using a graphing calculator to find intersection points. The lesson emphasizes the importance of accuracy in graphing and offers tips for using graphing calculators effectively.

Why is it important to have a graphing calculator for this lesson?

• To check homework answers

• To perform basic arithmetic

• To graph systems of equations

• To solve algebraic equations

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CCSS.8.EE.C.8B

What is the intersection point of two lines called?

• A midpoint

• A vertex

• A coordinate

• A solution

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CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What type of solution occurs when two lines never intersect?

• One solution

• Multiple solutions

• Infinite solutions

• No solution

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CCSS.8.EE.C.8B

What does it mean if two lines have infinite solutions?

• They never intersect

• They are the same line

• They intersect at one point

• They are parallel

Tags

CCSS.8.EE.C.8B

When graphing by hand, why is it important to be accurate?

• To make the graph look nice

• To avoid using a calculator

• To ensure the intersection point is correct

• To use fewer dots

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CCSS.HSA.REI.D.12

What should you do if you have a different model of graphing calculator?

• Buy a new calculator

• Use the same steps as the TI-83 or 84

• Search for instructions specific to your model

• Skip the graphing part

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CCSS.HSF-IF.C.7E

What is the first step in using a graphing calculator to find the intersection point?

• Clear previous entries

• Turn on the calculator

• Set the window

• Enter the equations

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CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which button do you press to access the 'Calculate' menu on a TI-83 or 84?

• Graph

• Second

• Window

• Zoom

What is the standard window setting for the graphing calculator?

• X: -10 to 10, Y: -10 to 10

• X: -20 to 20, Y: -20 to 20

• X: -5 to 5, Y: -5 to 5

• X: -30 to 30, Y: -30 to 30

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CCSS.HSF-IF.C.7E

How do you enter a negative sign on a TI-83 or 84 calculator?

• Use the minus button

• Use the subtraction button

• Use the negative button

• Use the division button

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CCSS.HSN.CN.A.2