REF and RREF

REF and RREF

Assessment

Quiz

Mathematics

10th - 12th Grade

Medium

CCSS
HSA.REI.C.8, HSA.REI.C.6, HSA.REI.C.9

+3

Standards-aligned

Created by

Shannon Atkins

Used 101+ times

FREE Resource

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8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

This is an example of

Row Echelon Form

Reduced Row Echelon Form

Really Reduced Echelon Form

Really Really Easy Form

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.C.8

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

This is an example of a

System of Quadratic Equations

Reduced Row Echelon Form

Augmented Matrix

A Canine Doing a Backflip

Tags

CCSS.HSA.REI.C.8

CCSS.HSA.REI.C.9

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Using back-substitution, calculate the solution for the REF matrix.

(3, -6, 3)

(-6, -6, 3)

(6, -6, 3)

(-6, -6, 3)

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.C.8

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the value of z?

6

-6

-36

4

Tags

CCSS.HSA.REI.B.3

CCSS.HSA.REI.C.8

CCSS.HSA.REI.C.9

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

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.A.1

CCSS.HSA.REI.C.6

CCSS.HSA.REI.C.8

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which row command is an appropriate next step?

7R2 + R3 -> R3

-7R1 + R3 -> R3

7R3 -> R3

-7R2 + R3 -> R3

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.C.8

8.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image
Solve!
(1,1,1)
(7, 4, -36)
(1,4,6)
(7,4,6)

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.C.7