Gaussian Elimination

When an element is missing in an equation, what value must go into the matrix for it?

• 1

• -1

• 0

• NA

Tags

CCSS.HSN.VM.C.6

A _____ is a rectangular arrangement of numbers.

• matrix
• dimension
• coefficient
• system

Tags

CCSS.HSN.VM.C.6

Which row command is an appropriate next step?

• 7R2 + R3 -> R3

• -7R1 + R3 -> R3

• 7R3 -> R3

• -7R2 + R3 -> R3

Tags

CCSS.HSA.REI.C.8

CCSS.HSA.REI.C.6

What is the value of z?

• 6

• -6

• -36

• 4

Tags

CCSS.HSA.REI.C.8

CCSS.HSA.REI.C.9

CCSS.HSA.REI.B.3

What is an appropriate first row command to solve this by Gaussian Elimination?

• 2R2 + R2 -> R2

• -2R1 + R2 -> R2

• R3 +R2 --> R3

• 2R1 + R2 --> R2

Tags

CCSS.HSA.REI.C.8

CCSS.HSA.REI.C.6

CCSS.HSA.REI.A.1

What is the solution to this system?

• {(2, 3, -1)}

• {(3, -1, 2)}

• {(-1, 3, 2)}

• {(2, -1, 3)}

Reduced Row Echelon Form is where ______________________

• Zeroes in the first column of my matrix

• Thel ast column has all zeroes

• One's are in a diagonal pattern of my matrix with zeroes underneath the one's.before the augmented portion

• One's are in a diagonal pattern of my matrix with zeroes above and below the ones before the augmented portion

Solve!

• (1,1,1)
• (6, -8, 36)
• (6,-8, 20)
• (6,-8,-20)

Tags

CCSS.HSA.REI.C.9

Which of the following is in Row Echelon Form?

• A

• B

• C

• D

Tags

CCSS.HSA.REI.C.8

Solve the system of equations:

• ( -2, 4, 3)

• ( 2, 1, 6)

• No solution

• Infinite solutions