1.
When two lines have different slopes, the graphs of the equations are _________
A.
intersecting lines.
B.
parallel lines.
C.
the same line.
D.
horizontal lines.
Hint
2.
State the solution of the system of equations graphed below.
A.
(3, -1)
B.
(3, 1)
C.
(-1, 3)
D.
(0, 3)
Hint
3.
Solve the system of equations by graphing.
A.
(0, 3)
B.
infinitely many solutions
C.
(-1, 7)
D.
no solution
Hint
4.
Which of the following systems of equations is inconsistent?
A.
4
y
–
x
= 12 3
y
– 2
x
= 1
B.
3
y
+ 2
x
= 13 6
y
+ 4
x
= 3
C.
y
= 2
x
– 3
y
= –3
x
+ 4
D.
y
= 7
x
– 2
y
= –2
x
– 5
Hint
5.
Which of the following systems of equations is not consistent and independent?
A.
2
y
+ 4
x
= 3 7
y
+ 5
x
= 18
B.
7
y
+
x
= 9 3
y
+ 9
x
= 4
C.
–
y
– 5
x
= 1 4
y
+ 3
x
= 8
D.
y
+ 4
x
= 10 6
y
+ 24
x
= 60
Hint