1.
Which element is in row 3, column 1?
A.
-1
B.
9
C.
6
D.
4
Hint
2.
Solve [3
x
8
y
] = [-12 1] for
x
and
y
.
A.
x
= 4
y
= 1
B.
x
= -12
y
= 1
C.
x
= -4
y
=
D.
x
= -4
y
= 8
Hint
3.
Solve
.
A.
B.
C.
(2, 8)
D.
(-2, -8)
Hint
4.
The matrix
is an example of which of the following matrices?
A.
all of the above
B.
column matrix
C.
square matrix
D.
row matrix
Hint
5.
Which of the following matrices is equal to
A.
B.
C.
D.
Hint