Understanding the Equal Values Method

In this video, the Math Magician introduces the equal values method for solving systems of equations algebraically. The method involves setting two expressions equal to the same variable and solving for one variable. The video demonstrates this process with example equations, showing how to solve for x and then find the corresponding y value. The video concludes by verifying the solution and emphasizing the flexibility of choosing either equation to find the y value.

What is the primary goal of the Equal Values Method?

• To set two expressions equal to each other

• To graph equations

• To solve for y directly

• To find the intersection of two lines

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which of the following is a correct application of the Equal Values Method?

• Solving for y first

• Setting two expressions equal to the same variable

• Setting two different variables equal

• Graphing the equations

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the first step in solving for x using the Equal Values Method?

• Divide both sides by 5

• Subtract 1 from both sides

• Multiply both sides by 2

• Add 1 to both sides

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

After finding x, what is the next step to find the solution?

• Add the two equations together

• Substitute x into one of the original equations

• Set y equal to zero

• Graph the equations

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the system of equations in the video?

• (1, 3)

• (3, 1)

• (0, 0)

• (2, 5)

Tags

CCSS.8.EE.C.8B

What does the ordered pair (1, 3) represent in the context of the video?

• The midpoint of the line

• The y-intercept

• The x-intercept

• The solution to the system of equations

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Why is it unnecessary to use both equations to find y?

• The method only works with one equation

• Both equations are identical

• It is faster to use only one equation

• Both equations will yield the same y value if done correctly

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CCSS.8.EE.C.7B

What mistake did the narrator correct when verifying the solution?

• Adding instead of subtracting

• Incorrectly writing a plus one

• Multiplying by the wrong number

• Using the wrong equation

What is the importance of writing the equation correctly?

• To make the solution process faster

• To ensure the graph is accurate

• To simplify the equation

• To avoid getting the wrong answer

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What does the Equal Values Method demonstrate about solving systems of equations?

• It is less accurate than graphing

• It only works for linear equations

• It is only useful for graphing

• It provides a way to solve algebraically

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6