Introduction Matrices

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

How many columns are in a 5 x 4 matrix?

• 5
• 4
• 20
• 9

Subtract

• 3    -8
  0   -1
• 3   -4
  8  -13
• -3   8
  0    1
• 3   -8
  -8    1

Tags

CCSS.HSN.VM.C.8

Add

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

Tags

CCSS.HSN.VM.C.8

What do w, x, y and z equal in this matrix subtraction?

• w = 13, x = 4, y = 7, z = 23
• w = 13, x = -4, y = 11, z = 23
• w = 13, x = 4, y = 11, z = 23
• w = 13, x = 4, y = 11, z = 17

In Matrix R (pictured) what element is in the second row, third column?

• 8
• 9.01
• 6
• 1

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.

Tags

CCSS.HSN.VM.C.8

What is a Matrix?

• An equation of over 5 numbers or symbols 
• A rectangular arrangement of numbers
• A method of finding the n^th value of a series
• A complicated number system

What is a₂₃

• 14

• 4

• 1

• 3

Tags

CCSS.HSA.REI.C.9

Which sums can NOT be made from the following matrices ?

• A+A

• A+C

• B+D

• C+C

Tags

CCSS.HSN.VM.C.8