Matrices Dimensions Elements

Entries (or elements) in a matrix are determined by their _____ position.

• row, column

• column, row

What number is located at D_2,1?

• 6

• -4

• 2

How many of the matrices above are rectangular but NOT square?

• 1

• 2

• 4

• 6

Which statement is TRUE regarding the matrices above?

• F is the row matrix and D is the column matrix.

• D is the row matrix and F is the column matrix.

• F and D are both column matrices.

• F and D are both row matrices.

What are the dimensions of this matrix?

• 2 x 3

• 3 x 2

• 6 x 1

• 1 x 6

What are the dimensions of this matrix?

• 3x1

• 1x3

• 3x3

• 1x1

How many rows are in a 7 x 3 matrix?

• 7

• 3

• 21

• 10

What is a Matrix?

• An equation of over 5 numbers or symbols

• A rectangular arrangement of numbers

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

• A complicated number system

• Row matrix

• Column matrix

• Square Matrix

• All of the above

Which of the following is true?

• Only a square Matrix can be a null matrix

• Only a diagonal Matrix can be a null Matrix

• Only a scalar Matrix can be a null Matrix

• None of the above.