1.
Solve [3
x
8
y
] = [-12 1] for
x
and
y
.
A.
x
= -12
y
= 1
B.
x
= 4
y
= 1
C.
x
= -4
y
= 8
D.
x
= -4
y
=
Hint
2.
Solve
.
A.
(-2, -8)
B.
C.
(2, 8)
D.
Hint
3.
The matrix
is an example of which of the following matrices?
A.
square matrix
B.
all of the above
C.
row matrix
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 has at least two rows and two columns.
C.
It is a row matrix.
D.
It is a column matrix.
Hint