Systems of Equations Matrices

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

• 8

• 9.01

• 6

• 1

What is the solution?

• (1, -1)

• (-1, 1)

• (0, -2)

• (2, 0)

Tags

CCSS.8.EE.C.8B

Solve by elimination:
9x-4y=7

x-4y=-17

• (-1,5)

• (-7,5)

• (7,5)

• (3,5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

In Matrix R (pictured) what element is a₂₃?

• 8

• 9.01

• 6

• 1

• a

• b

• c

• d

Tags

CCSS.HSA.REI.C.8

Solve the system by inverting the coefficient matrix and using (A^-1)(x)=b. Type your answer in (x1, x2, x3) format.

Tags

CCSS.HSA.REI.C.9

• 
• 
• 
• 

Solve the linear systems together by using the values of b for two separate systems, then reducing an appropriate augmented matrix to reduced row echelon form. Write your answer as (x1, x2), (x1, x2) form.

Tags

CCSS.8.EE.C.8B

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

• y = -7

• y = -3

• y = 7

• x = -3

Tags

CCSS.HSA.REI.C.9

Solve the system using matrices.

• (5, -6, 3)

• (2, 3, -1)

• (-4, 2, 5)

• No Solution

Tags

CCSS.HSA.REI.C.9