Matrices #2

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

How many rows does this matrix have?

• 2

• 3

• 6

• 4

Determine the dimensions of this matrix

• 3 columns, 2 rows, dimensions 3x2

• 2 columns, 3 rows, dimensions 2x3

• 3 columns, 2 rows, dimensions 2x3

• 2 columns, 3 rows, dimensions 3x2

How many rows are in a 7 x 3 matrix?

• 7
• 3
• 21
• 10

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

• 8
• 9.01
• 6
• 1

What comes first in the order?

• Row
• Column

Tags

CCSS.4.NBT.B.5

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

Name the dimensions.

• 2 x 4
• 4 x 2
• -2 x 6
• 1

Add

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

Tags

CCSS.HSN.VM.C.8

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