Matrix Re

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

• 8

• 9.01

• 6

• 1

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

Find the standard matrix for the transformation T defined by the formula:

• not enough information

• [1 0 -3]

  [1 -1 0]

  [0 3 1]

• [1 0 0]

  [0 0 -1]

  [0 1 -1]

  [0 3 1]

• [1 0 0]

  [0 0 -1]

  [-1 1 0]

  [0 3 1]

FIND THE DIAGONAL ENTRIES OF THE PRODUCT MATRIX (C11, C22, C33)

• C11 = -10

  C22 = 0

  C33 = 4

• C11 = -10

  C22 = 6

  C33 = 2

• C11 = -10

  C22 = 12

  C33 = 4

Tags

CCSS.HSN.VM.C.8

Is the given matrix upper triangular, lower triangular, or diagonal?

• upper triangular

• lower triangular

• diagonal

• none

Is the matrix invertible?

• Yes

• No

• Can't tell

Tags

CCSS.HSA.REI.C.9

Is the following matrix diagonal, upper triangular or lower triangular?

• upper triangular

• lower triangular

• diagonal

• can't tell

Is the following matrix diagonal, upper, or lower triangular

• upper triangular

• lower triangular

• diagonal

• can't tell

Is this matrix invertible

• yes

• no

• can't tell

Tags

CCSS.HSA.REI.C.9

If A is a 5x6 matrix, find the domain and codomain

• Domain: R5

  Codomain: R6

• Domain: R5

  Codomain: R5

• Domain: R6

  Codomain: R5

• Domain: R6

  Codomain: R5