Matrices Day 1

A Matrix is ______________________

• An arrangement of elements in Rows

• An arrangement of elements in Columns

• An arrangement of elements in Rows and Columns

• An ordered arrangement of elements in Rows and Columns

What is the name of each entry of a matrix?

• Row
• Element
• Dimension
• Rectangle

What is the order of a Matix

• Sum of number of rows and columns

• difference of number of rows and columns

• determined by the number of rows and columns

• none

What comes first when listing the size of a matrix?

• Row

• Column

Name the dimensions

• 3x1
• 1x3
• 3
• 1

What is the value of element a_2,3?

• 2
• -1
• 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.

Can the operation be performed?

• Yes
• No
• potato

Find A+B

• 8     10
  8      1 
• 12     25
  7     1
• 10     30
  0     1
• can't add two together because the rows dont match columns

Simplify.

• 
• 
• 
• 

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSN.RN.A.2