Intro to Matrices Practice

What is the value of a₄₂?

• -2

• 1

• 3

• 6

What is the name of each entry in a matrix?

• Row

• Column

• Order

• Element

What is the value of the element a₂₃?

• 6

• 1

• -1

• -2

How many columns are there in a 5x4 matrix?

• 5

• 4

• 20

• 9

How many rows are there in a 7x3 matrix?

• 7

• 3

• 21

• 10

What is the order of the matrix

• 2x3

• 3x2

• 2x2

• 3x3

What is the order of the matrix

• 3x4

• 4x3

• 3x5

• 5x3

What is the value of a_25?

• -1

• undefined

• -2

• 1

How many elements are there in a matrix of order 3x5?

• 8

• 15

• 3

• 5

A matrix having 36 elements cannot have order

• 9x4

• 6x6

• 8x3

• 36x1