Quiz about System of 2 Equations: Matrices

Question 1

Find the determinant of the matrix

Accepted Answer

-42

Answer

42

Answer

22

Answer

-22

Question 2

Calculate the determinant

Accepted Answer

10

Answer

0

Answer

-15

Answer

-70

Question 3

What is the inverse of the 2x2 matrix?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 4

Find the inverse.

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 5

Accepted Answer

b

Answer

a

Answer

c

Answer

d

Question 6

Accepted Answer

c

Answer

a

Answer

b

Answer

d

Question 7

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 8

Solve for x:

x - y = - 6

x + y = 8

Accepted Answer

1

Answer

-1

Answer

7

Answer

8

Question 9

Solve the system for the value of x.

5x + 8y = -12

3x + 5y = -7

Accepted Answer

-4

Answer

1

Answer

-1

Answer

No solution

Question 10

Solve for y:

2x + y = 12

-3x + y = 2

Accepted Answer

8

Answer

-2

Answer

-8

Answer

2

Question 11

Solve for y :

3x + 4y = 52

5x + y = 30

Accepted Answer

10

Answer

4

Answer

-10

Answer

-4

Question 12

Solve the system of equations for the value of x.

y = 4x+1

3x + 2y = 13

Accepted Answer

1

Answer

-1

Answer

-5

Answer

5

Question 13

Use matrices to solve the system of equations for the y-coordinate.

Accepted Answer

y = 7

Answer

y = -7

Answer

y = -3

Answer

x = -3

Question 14

Solve for the value of the x-coordinate.

8x - 6y + 20 = 0

7y - 16x - 45 = -15

Accepted Answer

-1

Answer

2

Answer

-2

Answer

1

Question 15

Solve the system for the value of y:

2y + 7x + 6 = -13

2y - x - 7 = 14

Accepted Answer

y = 8

Answer

x = -5

Answer

y = -5

Answer

y = -8

System of 2 Equations: Matrices

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