1.
Write a matrix for the system of equations.
A.
B.
C.
D.
Hint
2.
Solve
using inverse matrices.
A.
(4, -4)
B.
(4, 4)
C.
(-4, 0)
D.
(-4, 4)
Hint
3.
Which of the following is a matrix equation for the system 5
x
– 3
y
=11, –3
x
+ 2
y
= 7?
A.
B.
C.
D.
Hint
4.
Suppose a matrix equation of a system of equations does not have a unique solution. What cannot be true?
A.
ad
–
bc
? 0
B.
C.
D.
is undefined
Hint
5.
Solve the system of equations4
x
– 2
y
= 2, –3
x
+ 7
y
= –29
A.
no solution
B.
(–2, –5)
C.
(–2, 5)
D.
(2, –5)
Hint