Basic Matrix

What is a Matrix?

• An equation of over 5 numbers or symbols 

• A set of numbers in rows and columns

• A method of finding the n^th value of a series

• A complicated number system

What is the name of each entry of a matrix?

• Row

• Element

• Dimension

• Rectangle

What comes first in the order?

• Row

• Column

How many rows are in a 7 x 3 matrix?

• 
  7

• 3

• 21

• 10

How many columns are in a 5 x 4 matrix?

• 5

• 4

• 20

• 9

What are the dimensions of this matrix?

• 2 x 3

• 3 x 2

• 6 x 1

• 1 x 6

Add

• 11    8
  -4     2

• 3     2
  -6    -6

• -3    2
  -4    -6

• 10    8
  -6    2

Subtract

• 
  -5
  -8
  3
  10

• -9
  8
  3
  2

• 5
  -8
  3
  10

• -5
  8
  3
  2

Multiply

• 25
  25
  5

• -25

  25
  -5

• -6

  -10
  -10

• 10
  10
  6

What are the dimensions of this matrix?

• 3x1

• 1x3

• 3x3

• 1x1