Matrix Quiz Review

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 would two matrices need to be considered 'equal'?

• The same dimensions and different element values
• The same dimension and the same element values
• Two matrices can never be equal
• two matrices are 'equal' when they are added together to create a matrix of only "0's"

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

• a
• b
• c
• d

What must be true in order to ADD two matrices?

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

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