Algebra 2 Elementary Matrix Operations

Perform the indicated operation

• 
• 
• 
• 
• not possible

How would a scalar multiplication be carried out for a matrix?

• Add the Scalar to every element in the matrix

• Dot product the rows of one matrix with the columns of the other matrix

• Multiply every element with the scalar to create a new matrix

• subtract the elements in the first matrix from the elements of the second matrix

Add.

• No Sum Exists

• 
• 
• 

find: B*A

• 47     30
  9     5

• 17     15
  42     35

• 10     25
  7     1

• not possible because rows do not match columns

Find the product.

• undefined

• -3   16
  17   12
  8   -10

• 3   12 
  -15  -8
  -1   -3

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

• 8

• 9.01

• 6

• 1

The order of the matrix is

• 2 x 3

• 3 x 2

Element G₂₂ is

• 1

• 2

• 3

• 4

Subtract

• -5
  -8
  3
  10

• -9
  8
  3
  2

• 5
  -8
  3
  10

• -5
  8
  3
  2

Solve the system of equations: 

• ( 4, 0, -2)

• ( -4, -2, 0)

• None of these

• ( -4, 0, -2)