Adding, Subtracting, and Scalar Multiplication of Matrices

Find A-B

• -3     1
  7     -1

• 1     0
  1     -4

• -4       0
  6     -1

• not possible because rows do not match columns

Tags

CCSS.HSN.VM.C.8

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

In Matrix R (pictured) what is the value of element R_3,2

• 8

• 9.01

• 6

• 1

• 2

• 7

• 4

• -3

Tags

CCSS.HSN.VM.C.8

• 
• 
• 
• 

Tags

CCSS.HSN.VM.C.8

Find the values of w, x, y and z.

• w = 13, x = 4, y = 7, z = 23

• w = 13, x = -4, y = 11, z = 23

• w = 13, x = 4, y = 11, z = 23

• w = 13, x = 4, y = 11, z = 17

Tags

CCSS.HSA.REI.C.9

• -5

• 5

• 0

• 2

Tags

CCSS.HSN.VM.C.8

Which sums can NOT be made from the following matrices ?

• A+A

• A+C

• B+D

• C+C

Tags

CCSS.HSN.VM.C.8

The matrix A - B is

• 
• 
• 
• 

Tags

CCSS.HSN.VM.C.8

What is a₂₃

• 14

• 4

• 1

• 3

Tags

CCSS.HSA.REI.C.8