Parameterizing Solution Sets Using Vectors

The video tutorial explains how to solve a system of equations and parameterize the solution set using vectors or column matrices. It begins by setting up an augmented matrix and using technology to reduce it to row echelon form. The presence of a row of zeros indicates infinite solutions, which are parameterized using the variable z. The solution is expressed in terms of column matrices, factoring out the variable z to show the solution set in vector form.

What is the primary goal when asked to parameterize a solution set using vectors?

• To find a single unique solution

• To express the solution set in terms of a parameter

• To eliminate all variables

• To convert the system into a quadratic equation

Which tool is suggested for converting an augmented matrix into reduced row echelon form?

• Microsoft Excel

• Graphing Calculator

• Desmos Matrix Calculator

• Python Programming

Tags

CCSS.8.EE.C.8B

What does a row of zeros in the reduced row echelon form indicate?

• No solution exists

• A unique solution exists

• An infinite number of solutions exist

• The system is inconsistent

Tags

CCSS.8.EE.C.8B

How is the variable z used in parameterizing the solution set?

• As a divisor

• As a parameter

• As a coefficient

• As a constant

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the expression for x in terms of z after solving the first equation?

• x = 1 - 5z

• x = -1 - 5z

• x = -1 + 5z

• x = 5z - 1

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the expression for y in terms of z after solving the second equation?

• y = -3 - z

• y = 3 - z

• y = 3 + z

• y = z - 3

Tags

CCSS.HSA.REI.C.8

How is the solution set expressed using column matrices?

• As a product of two matrices

• As a sum of two matrices

• As a difference of two matrices

• As a single matrix

Tags

CCSS.7.EE.A.1

What is the purpose of factoring out the variable z in the final expression?

• To eliminate z

• To convert it into a scalar

• To simplify the expression

• To highlight the dependency on z

Tags

CCSS.HSA.REI.C.8

What are the coefficients of z in the final column matrix?

• -5, -1, 1

• 5, 1, -1

• 1, 5, -1

• -1, 5, 1

Tags

CCSS.HSA.REI.C.8

What does the constant matrix represent in the final expression?

• The variable terms

• The solution without the parameter

• The coefficients of z

• The augmented matrix

Tags

CCSS.HSA.REI.C.8