Quiz about Matrices Notes

Question 1

Question 1.

Accepted Answer

2

Answer

7

Answer

4

Answer

-3

Question 2

Question 2.

Accepted Answer

5

Answer

-5

Answer

0

Answer

2

Question 3

Question 3.

Accepted Answer

Answer

Answer

Answer

Question 4

What is a₂₃

Accepted Answer

4

Answer

14

Answer

1

Answer

3

Question 5

Which sums can NOT be made from the following matrices ?

Accepted Answer

A+C

Answer

A+A

Answer

B+D

Answer

C+C

Question 6

Question 6.

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 7

Question 7.

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 8

Which of the following products can NOT be made from these matrices ?

Accepted Answer

BC

Answer

AB

Answer

BA

Answer

BD

Question 9

BA=

Accepted Answer

Undefined

Answer

B.

Answer

C.

Answer

D.

Question 10

What is the dimension of this matrix?

Accepted Answer

3 x 2

Answer

2 x 3

Answer

6 x 1

Answer

1 x 6

Question 11

What comes first in the dimension?

Accepted Answer

Row

Answer

Column

Question 12

What must be true in order to ADD two matrices?

Accepted Answer

The dimensions must be equal.

Answer

They must be square.

Answer

The determinant can't equal 0.

Answer

The column of the 1st must equal the row of the 2nd.

Question 13

What do w, x, y and z equal in this matrix equation?

Accepted Answer

w = 13, x = 4, y = 11, z = 23

Answer

w = 13, x = 4, y = 7, z = 23

Answer

w = 13, x = -4, y = 11, z = 23

Answer

w = 13, x = 4, y = 11, z = 17

Question 14

Question 14.

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 15

Question 15.

Accepted Answer

Option A is correct

Answer

undefined/not possible

Answer

C.

Answer

D.

Question 16

Question 16.

Accepted Answer

Option A is correct

Answer

No solution

Answer

C.

Answer

D.

Question 17

Matrices can be multiplied only...

Accepted Answer

if the column of the first matrix is equal to the row of the second matrix.

Answer

if the row of the first matrix is equal to the column of the second matrix.

Answer

if the column of the first matrix is equal to the column of the second matrix.

Answer

if the row of the first matrix is equal to the row of the second matrix.

Question 18

What would be the dimension of the matrix product AB?

If A_1X4and B_4X7

Accepted Answer

1X7

Answer

4X4

Answer

4X7

Answer

7X1

Question 19

The matrix A - B is

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Matrices Notes

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