1.	Which element is in row 3, column 1?
		A.	-1	B.	6
		C.	4	D.	9
		Hint
	2.	Choose the matrix that represents the ordered triple (5, -7, 1).
		A.		B.
		C.	[1 -7 5]	D.	[5 -7 1]
		Hint
	3.	Solve .
		A.	(2, 8)	B.	(-2, -8)
		C.		D.
		Hint
	4.	What are the dimensions of matrix A if
		A.	4 × 3	B.	3 × 3
		C.	4 × 4	D.	3 × 4
		Hint
	5.	The matrix is an example of which of the following matrices?
		A.	square matrix	B.	row matrix
		C.	column matrix	D.	all of the above
		Hint