Quiz about Matric

Question 1

Name the order of this matrix.

Accepted Answer

3x1

Answer

1x3

Answer

3

Answer

1

Question 2

Find the product of the two matrices.

Accepted Answer

-3 16
17 12
8 -10

Answer

undefined

Answer

3 12
-15 -8
-1 -3

Question 3

In Matrix R (pictured) what element is a₂₃?

Accepted Answer

6

Answer

8

Answer

9.01

Answer

1

Question 4

Find the product of the two matrices.

Accepted Answer

-3 -5
-5 -11

Answer

1 2 6 -8

Answer

-2 8
-6 -12

Answer

2 -3 5 -2

Question 5

You can multiply a 6X2 matrix by which matrix?

Accepted Answer

2X12

Answer

6X2

Answer

3X12

Answer

6x3

Question 6

find: B*A

Accepted Answer

47 30 9 5

Answer

17 15
42 35

Answer

10 25 7 1

Answer

not possible because rows do not match columns

Question 7

These matrices are being multiplied. Determine the dimension/size of the new matrix.

Accepted Answer

Can't multiply them

Answer

4  x  2

Answer

3  x  3

Answer

4  x  3

Question 8

Simplify.

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 9

Find the product of the matrices.

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 10

What is the name of each entry of a matrix?

Accepted Answer

Element

Answer

Row

Answer

Dimension

Answer

Numbers

Question 11

Can the operation be performed?

Accepted Answer

Yes

Answer

No

Answer

tomato

Answer

Maybe

Question 12

Find the product of the two matrices.

Accepted Answer

17 12
25 18

Answer

8 9 12 6

Answer

6 6 7 5

Answer

12 10
10 12

Question 13

Given matrices A & B:
A is a (4x33) matrix
B is a (33x1) matrix
What are the dimensions of the product of A times B?

Accepted Answer

4x1

Answer

4x33

Answer

33x1

Answer

Matrix does not exist

Question 14

After completing multiplying the two matrices together, what is the sum of highest value and lowest value inside of the resulting matrix?

Accepted Answer

14

Answer

13

Answer

12

Answer

11

Question 15

Find the determinant's value

Accepted Answer

-18

Answer

-23

Answer

-2

Answer

2

Question 16

Which matrix does NOT have an inverse?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 17

Question 17.

Accepted Answer

-5 2 3 -1

Answer

5 -2 -3 1

Answer

-5 3 2 -1

Answer

1 -3 -2 5

Question 18

Find the inverse of the matrix

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 19

Find the determinant of the matrix

Accepted Answer

No Determinant

Answer

-7

Answer

-17

Answer

0

Question 20

Solve the system
-x + y = 5
x - 5y = -9

Accepted Answer

x = -4, y = 1

Answer

x = 3, y = 8

Answer

x = 1, y = 2

Answer

x = 4, y = 9

Question 21

Solve the system. Write the matrix equation on your own paper.
5x + 8y = -12
3x + 5y = -7

Accepted Answer

(-4, 1)

Answer

(1, -10)

Answer

No solution

Answer

(1, 10)

Question 22

Question 22.

Accepted Answer

x=2 y=-1

Answer

x=-1 y=2

Answer

x=-2 y=1

Answer

x=1 y=-2

Question 23

What is the determinant of this matrix?

Accepted Answer

25

Answer

5

Answer

-25

Answer

1

Question 24

Identify

Accepted Answer

inverse matrix

Answer

singular matrix

Answer

partial fraction

Answer

coeffecient matrix

Question 25

What is a Matrix?

Accepted Answer

A set of numbers in rows and columns

Answer

An equation of over 5 numbers or symbols

Answer

A method of finding the n^th value of a series

Answer

A complicated number system

Question 26

find: B*A

Accepted Answer

47 30 9 5

Answer

17 15
42 35

Answer

10 25 7 1

Answer

not possible because rows do not match columns

Question 27

What comes first in the order?

Accepted Answer

Row

Answer

Column

Question 28

Find A-B

Accepted Answer

-4 06 -1

Answer

-3 17 -1

Answer

1 01 -4

Answer

not possible because rows do not match columns

Question 29

Dimensions?

Accepted Answer

a

Answer

b

Answer

c

Answer

d

Question 30

Perform scalar multiplication on the matrix

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 31

Multiply the matrices

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 32

Which matrix has an undefined inverse?
*undefined matrices have determinants of 0

Accepted Answer

[1/2 3/4]
[4/2 9/3]

Answer

[1 2]
[0 3]

Question 33

How many columns are in a 5 x 4 matrix?

Accepted Answer

4

Answer

5

Answer

20

Answer

9

Question 34

Identify

Accepted Answer

Identity matrix

Answer

Cramer's Rule

Answer

row echelon form

Answer

inverse matrix

Question 35

Add

Accepted Answer

11 8 -4 2

Answer

3 2 -6 -6

Answer

-3 2 -4 -6

Answer

10 8 -6 2

Question 36

Subtract

Accepted Answer

-9 8 3 2

Answer

-5 -8 3 10

Answer

5 -8 3 10

Answer

-5 8 3 2

Question 37

In Matrix R (pictured) what element is in the second row, third column?

Accepted Answer

6

Answer

8

Answer

9.01

Answer

1

Question 38

Find B - A

Accepted Answer

-3 41 -4

Answer

5 43 6

Answer

-3 -4-1 4

Answer

1 56 2

Question 39

Find 2A + 2B

Accepted Answer

10 86 12

Answer

5 43 6

Answer

Impossible

Answer

0 45 1

Question 40

What number is found in spot C₂₂

Accepted Answer

4

Answer

-1

Answer

2

Answer

1

Question 41

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 number of columns in the 1st must be equal to the number of rows in the second.

Question 42

What must be true in order to MULTIPLY two matrices?

Accepted Answer

The number of columns in the 1st must be equal to the number of rows in the second.

Answer

They must be square.

Answer

The determinant can't equal 0.

Answer

The dimensions must be equal.

Question 43

What will the dimensions be of the product of A*B

Accepted Answer

2 x 3

Answer

2 x 2

Answer

3 x 2

Answer

3 x 3

Question 44

When is the inverse of a matrix undefined?

Accepted Answer

When the determinant is zero

Answer

When the determinant is negative

Answer

When the dimensions are wrong

Question 45

What is the name of each entry of a matrix?

Accepted Answer

Element

Answer

Row

Answer

Dimension

Answer

Rectangle

Question 46

What do m, n, p and q equal in this scalar matrix multiplication?

Accepted Answer

m=15, n = -45, p=20, q=-5

Answer

m=8, n=9, p=-4, q=4

Answer

m=20, n=-5, p=15, q=-45

Answer

m=-5, n=20, p=-45, q=15

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