Operation of Matrices

What do a, b, c and d equal in this matrix addition?

• a = -1, b = 10, c = 7, d = -11

• a = -1, b = 10, c = -11, d = 7

• a = 10, b = -1, c = 7 , d = -11 

• a = 10, b = -1, c = -11, d = 7

Tags

CCSS.HSN.VM.C.8

What do m, n, p and q equal in this scalar matrix multiplication?

• m=8, n=9, p=-4, q=4 

• m=15, n = -45, p=20, q=-5

• m=20, n=-5, p=15, q=-45

• m=-5, n=20, p=-45, q=15

Tags

CCSS.HSN.VM.C.7

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

• A
• B
• C
• D

Tags

CCSS.HSN.VM.C.8

Find the product of the two matrices.

• 17   12
  25   18

• 8   9
  12   6

• 6   6
  7   5

• 12   10
  10   12

Tags

CCSS.HSN.VM.C.8

Find 2A-3B

• -3 1

  7 -1

• 1 0

  1 -4

• -4 0

  6 -1

• -14 -5

  11 -3

• 
• 
• 
• 

Tags

CCSS.HSN.VM.C.8

Find 3B - 2A

• [22 25]

  [17 3]

• [14 5]

  [-11 3]

• [-14 5]

  [11 -3]

• none of these

• A

• B

• C

• D

• E

Tags

CCSS.HSN.VM.C.8

Multiply the matrices.

​ (a)   ​ (b)  

​ (c)   ​ (d)  

​

• -24

• -12

• -20

• -1

• 0

• -16

• -10

• -4

Tags

CCSS.HSN.VM.C.8