1.	Which element is in row 3, column 1?
		A.	6	B.	4
		C.	-1	D.	9
		Hint
	2.	Choose the matrix that represents the ordered triple (5, -7, 1).
		A.	[1 -7 5]	B.
		C.		D.	[5 -7 1]
		Hint
	3.	The matrix is an example of which of the following matrices?
		A.	square matrix	B.	row matrix
		C.	all of the above	D.	column matrix
		Hint
	4.	Which of the following matrices is equal to
		A.
		B.
		C.
		D.
		Hint
	5.	What is always true of an n × n matrix?
		A.	It is a square matrix.	B.	It is a column matrix.
		C.	It is a row matrix.	D.	It has at least two rows and two columns.
		Hint