Matrices

Multiple Choice

What is the size of the given matrix?

• 2 x 4
• 4 x 2
• -2 x 6
• 1

Multiple Choice

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

• 8
• 9.01
• 6
• 1

Draw

Create an example of a square matrix.

Open Ended

Define equal matrices.

Multiple Choice

What must be true in order to ADD two matrices?

• They must be square.
• The dimensions must be equal.
• The determinant can't equal 0.
• The column of the 1st must equal the row of the 2nd.

Multiple Choice

Add

• 11    8
  -4     2
• 3     2
  -6    -6
• -3    2
  -4    -6
• 10    8
  -6    2

Multiple Choice

Multiply

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

​A matrix is invertible if the determinant is not zero or undefined.

Multiple Choice

Is the given matrix invertible?

• Yes

• No

Multiple Choice

What is the transpose of the given matrix?

• 0 -2 -3

  -1 2 2

  1 0 4

• 0 -2 -3

  1 0 4

  -1 2 2

• 1 -1 0

  0 2 -2

  4 2 -3

• 1 -1 0

  4 2 -3

  0 2 -2

Multiple Choice

Find the A∨B of the given matrix.

• 1 1

  1 0

• 1 1

  1 1

• 0 1

  0 0

• 0 0

  0 0

Multiple Choice

Find the A⋀B of the given matrix.

• 1 1

  1 0

• 1 1

  1 1

• 0 1

  0 0

• 0 0

  0 0

Multiple Choice

Find the A⊗B of the given matrix.

• 1 1

  1 0

• 1 1

  1 1

• 0 1

  0 0

• 0 0

  0 0