Quiz about Systems by Matrices

Question 1

Solve using matrices.

4x + 8y = 20

-4x + 2y = -30

Accepted Answer

(7,-1)

Answer

(-7,1)

Answer

(2,-5)

Answer

(-2,5)

Question 2

Now, let's find the solution to the system.

2x + 3y = 12

4x - 7y = - 54

Accepted Answer

(-3, 6)

Answer

(-3, 2)

Answer

(-3, -2)

Answer

(6, -3)

Question 3

Solve by matrices

2x + 9y = -7

6x - 3y = 9

Accepted Answer

(1,-1)

Answer

(-1, -1)

Answer

(2,-1)

Answer

(1,1)

Question 4

Solve by matrices
-2x + 6y = 16
-4x - 3y = 2

Accepted Answer

(-2,2)

Answer

(2,2)

Answer

(-2, -2)

Answer

(2,1)

Question 5

Solve for x and y
3x + 2y = 16
7x + y = 19

Accepted Answer

(2,5)

Answer

(-2,5)

Answer

(-2,-5)

Answer

(2,-5)

Question 6

What is the solution to the system of equations below?

x + y = 10

x - y = 2

Accepted Answer

(6, 4)

Answer

(3, 1)

Answer

(4, 6)

Answer

(5, 5)

Question 7

What is the solution to the system of equations below?

x - 3y = -13

-x + 4y = 15

Accepted Answer

(-7, 2)

Answer

(-3, 3)

Answer

(7, -2)

Answer

(10, 1)

Question 8

What is the solution to the system of equations below?

-x + 2y = 12

x + 6y = 20

Accepted Answer

(-4, 4)

Answer

(-4, -6)

Answer

(2, 7)

Answer

(8, 2)

Question 9

What is the solution to the system of equations below?

-5x + 2y = -3

5x + y = -9

Accepted Answer

(-1, -4)

Answer

(-4, 11)

Answer

(3, 6)

Answer

(6, 3)

Question 10

What is the solution to the system of equations below?

10x + 5y = -5

7x - 5y = 5

Accepted Answer

(0, -1)

Answer

(-1, 0)

Answer

(0, 1)

Answer

(1, 0)

Question 11

What is the solution to the system of equations below?

2x - 2y = 2

6x + 2y = -18

Accepted Answer

(-2, -3)

Answer

(-3, -2)

Answer

(-1, -2)

Answer

(-2, -1)

Question 12

What is the solution to the system of equations below?

2x + 3y = 18

15x - 3y = 33

Accepted Answer

(3, 4)

Answer

(-3, -4)

Answer

(-3, 8)

Answer

(3, -4)

Question 13

What is the solution to the system of equations below?

10x + 5y = -5

7x - 5y = 5

Accepted Answer

(0, -1)

Answer

(-1, 0)

Answer

(0, 1)

Answer

(1, 0)

Question 14

Solve each system by matrices.

-8x + 8y = 16

8x + 6y = 12

Accepted Answer

(0, 2)

Answer

(0, -2)

Answer

(0, -6)

Answer

(0, 6)

Question 15

Solve each system by matrices.

10x - 6y = -10

-10x + 3y = -20

Accepted Answer

(5, 10)

Answer

(5, -10)

Answer

(-10, 1)

Answer

(1, -10)

Question 16

Solve each system by matrices.

-3x + 3y = -3

9x - 3y = 15

Accepted Answer

(2, 1)

Answer

(-3, 2)

Answer

(-2, 1)

Answer

(-3, 2)

Question 17

Solve each system by matrices.

7x + 9y = 25

-7x - 5y = -17

Accepted Answer

(1, 2)

Answer

(1, -5)

Answer

(-2, 1)

Answer

(1, -2)

Question 18

What is the solution to the system of equations below?

10x + 5y = -5

7x - 5y = 5

Accepted Answer

(0, -1)

Answer

(-1, 0)

Answer

(0, 1)

Answer

(1, 0)

Systems by Matrices

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