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Test Review for Matrix

Authored by Anthony Clark

Mathematics

11th Grade

CCSS covered

Test Review for Matrix
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11 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

(3, 9 -1)

(0, 3, 7)

All Real Numbers

No Solution

Tags

CCSS.HSA.REI.C.9

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Jillian solved the matrix on the left. Jacob solved the matrix on the right. Who is correct?

Jillian, because she multiplied by the reciprocal.

Jacob, because he got the top left number to be a one.

Neither. They needed to take care of the one and make it a zero first.

Both. Each step is legal and takes care of the top left term

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Jemima is in the process of reducing her matrix. Her next step is shown here. What was her mistake?

She should have multiplied the 3 by its' reciprocal

She has the bottom row already solved for

She multiplied her top row correctly, but that doesn't change the first row when we add it to another row

Nothing. She performed her step correctly.

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

This is an example of

Row Echelon Form

Reduced Row Echelon Form

Really Reduced Echelon Form

Really Really Easy Form

5.

MULTIPLE CHOICE QUESTION

1 min • 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

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the solution to the 4x5 Matrix?

( 3, 4, 9, 6 )

( 3, 4, 9, -6 )

( -6, 9, 4, 3 )

( 6, 9, 4, 3 )

Tags

CCSS.HSN.VM.C.11

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the solution to the systems of equations represented by the 3x4 Matrix?

(4, 6, 2)

(-6, 2, 2)

All Real Numbers

No Solutions

Tags

CCSS.8.EE.C.8B

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