Eigenvalues and Matrix Equations

The video tutorial explains how to find the eigenvalues of a matrix by setting up and solving a system of equations. It begins with an introduction to eigenvalues and the necessary equations, followed by a step-by-step process of rearranging and factoring the equations to form the coefficient matrix. The tutorial concludes with a summary of the process and the final coefficient matrix.

What is the purpose of finding eigenvalues in a matrix?

• To calculate the inverse of the matrix

• To find the scalar values that satisfy a specific equation

• To determine the determinant of the matrix

• To solve linear equations

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CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

In the equation Matrix A * Vector x = Lambda * Vector x, what does Lambda represent?

• A constant matrix

• A vector

• A scalar value

• A variable

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CCSS.HSA.REI.C.8

What is the first step in formulating the system of equations from the matrix equation?

• Finding the determinant

• Solving for x

• Setting up the vector equation

• Writing the corresponding system of equations

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CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How do you rearrange the first equation to isolate variables on one side?

• Multiply both sides by Lambda

• Subtract Lambda X1 from both sides

• Divide both sides by X1

• Add Lambda X1 to both sides

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CCSS.7.EE.A.1

What operation is performed to simplify the equation -9 X1 - Lambda X1 + 4x2 = 0?

• Adding terms

• Factoring out X1

• Multiplying by Lambda

• Dividing by X1

What is the result of factoring out X2 from the equation 7 X2 - Lambda X2?

• X2 + Lambda

• X2 - Lambda

• 7 + Lambda

• 7 - Lambda

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CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the first row of the coefficient matrix?

• 2, 7 - Lambda

• 7 - Lambda, 2

• -9 - Lambda, 4

• 4, -9 - Lambda

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CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the second row of the coefficient matrix?

• -9 - Lambda, 4

• 2, 7 - Lambda

• 4, -9 - Lambda

• 7 - Lambda, 2

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CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the final form of the matrix equation?

• Coefficient Matrix * Vector x = Zero Vector

• Matrix A * Vector x = 0

• Matrix A * Vector x = Lambda * Vector x

• Lambda * Vector x = Zero Vector

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CCSS.HSA.REI.C.9

What is the purpose of constructing the coefficient matrix?

• To simplify the system of equations

• To determine the eigenvectors

• To find the inverse of the matrix

• To solve for Lambda

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CCSS.HSA.REI.C.9