Multiplying Matrices

You can multiply a 2X3 matrix by which matrix?

• 2X2
• 2X12
• 3X12
• 2X3

Find the product of the two matrices.

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

Find the product of the two matrices.

• 1   2
  6   -8
• -3   -5
  -5   -11
• -2     8
  -6   -12
• 2  -3
  5   -2

You can multiply a 6X2 matrix by which matrix?

• 6X2
• 2X12
• 3X12
• 6x3

find: B*A

• 47     30
  9     5
• 17     15
  42     35
• 10     25
  7     1
• not possible because rows do not match columns

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

Find the product of the matrices.

• A
• B
• C
• D

Given matrices A & B: 
A is a (4x33) matrix
B is a (33x1) matrix
 What are the dimensions of the product of A times B?

• 4x1
• 4x33
• 33x1
• Matrix does not exist

matrix A = 2 x 7,

matrix B = 5 x 2

Determine which of the following operations exist.

• A + B

• A - B

• AB

• BA

After completing multiplying the two matrices together, what is the sum of highest value and lowest value inside of the resulting matrix?

• 14
• 13
• 12
• 11