Quiz about Basic Matrix Operations

Question 1

Find D + E.

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

Not possible

Question 2

Find 5A.

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 3

Find 0A.

Accepted Answer

Option A is correct

Answer

Not this one

Answer

Not this one either

Answer

Try another one

Question 4

Perform the matrix operation.

Accepted Answer

B) Option 2

Answer

A) Option 1

Answer

C) Option 3

Answer

D) Option 4

Question 5

Use what you know about matrix equality to solve for the variables.

Accepted Answer

x = 16

y = 8

z = 3

Answer

x = 4

y = 2

z = 3

Answer

x = 4

y = $$\frac{1}{2}$$

z = 2

Answer

Not possible

Question 6

Use what you know about matrix equality to find r, s, and t.

Accepted Answer

r = -8

s = 6

t = -9

Answer

r = -36

s = -3

t = -63

Answer

r = 72

s = $$-\frac{2}{3}$$

t = 3

Answer

No solution

Question 7

Find $$\frac{1}{2}A\ .$$

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 8

Find B-A

Accepted Answer

4 0 -6 0

Answer

-3 1 7 -1

Answer

1 0 1 -4

Answer

not possible because rows do not match columns

Question 9

Question 9.

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 10

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

Accepted Answer

6

Answer

8

Answer

9.01

Answer

1

Question 11

Subtract

Accepted Answer

-9 8 3 2

Answer

-5 -8 3 10

Answer

5 -8 3 10

Answer

-5 8 3 2

Question 12

Add

Accepted Answer

11 8 -4 2

Answer

3 2 -6 -6

Answer

-3 2 -4 -6

Answer

10 8 -6 2

Question 13

What are the dimensions of this matrix?

Accepted Answer

3 x 2

Answer

2 x 3

Answer

6 x 1

Answer

1 x 6

Question 14

Find A+B

Accepted Answer

8 10 8 1

Answer

12 25 7 1

Answer

10 30 0 1

Answer

can't add two together because the rows dont match columns

Question 15

How many columns are in a 5 x 4 matrix?

Accepted Answer

4

Answer

5

Answer

20

Answer

9

Basic Matrix Operations

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