First 15 Unit 2 #2 9/23

How many rows are in a 7 x 3 matrix?

• 7
• 3
• 21
• 10

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

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

Tags

CCSS.HSN.VM.C.7

• 8
• 9.01
• 6
• 1

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• undefined

• 1 x 6

Can the operation be performed?

• Yes
• No
• tomato
• Maybe

Tags

CCSS.HSN.VM.C.8