Systems of Three Equations and Matrices

Solve the system of equations using algebra:

• ( -2, 3, -3)

• None of these

• ( -2, -3, 3)

• ( -3, 3, -2)

How many rows are in a 7 x 3 matrix?

• 7
• 3
• 21
• 10

Tags

CCSS.HSN.VM.C.6

Find A+B

• 8     10
  8      1 
• 12     25
  7     1
• 10     30
  0     1
• can't add two together because the rows dont match columns

Tags

CCSS.HSN.VM.C.8

Find B-A

• -4     0
  6     -1
• 1     0
  1     -4
• 4       0
  -6     1
• not possible because rows do not match columns

Tags

CCSS.HSN.VM.C.8

Find the product of the two matrices.

• undefined
• -3   16
  17   12
  8   -10
• 3   12 
  -15  -8
  -1   -3

Tags

CCSS.HSN.VM.C.8

You can multiply a 6X2 matrix by which matrix?

• 6X2
• 2X12
• 3X12
• 6x3

Tags

CCSS.HSN.VM.C.8

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

• Can't multiply them
• 4  x  2
• 3  x  3
• 4  x  3

Tags

CCSS.HSN.VM.C.8

Multiply

• 25
  25
  5
• -25
  25
  -5
• -10
  -10
  -6
• 10
  10
  6

Tags

CCSS.HSN.VM.C.11

When solving a system AX=B using inverse matrices, you use the equation:

• X=A^-1B
• B=X^-1A
• A=X^-1B
• X=B^-1A

Tags

CCSS.HSA.REI.C.9

Solve the system of equations using an inverse matrix:

• ( 4, 2, -1)

• ( 4, 3, -1)

• None of these

• ( -4, 3, 1)