1.
When two lines have different slopes, the graphs of the equations are _________
A.
parallel lines.
B.
horizontal lines.
C.
the same line.
D.
intersecting lines.
Hint
2.
The system of equations on the graph shown is
A.
consistent and dependent.
B.
inconsistent.
C.
consistent.
D.
consistent and independent.
Hint
3.
What is true about the system
and
A.
The system is inconsistent.
B.
The system is consistent and dependent.
C.
The system has infinitely many solutions.
D.
The system is consistent and independent.
Hint
4.
The Waxmans just opened a carpet store. Their startup costs were $5000, and their cost of carpet is $8 per square yard. How many square yards of carpet do they need to sell in order to break even if they sell the carpet for $18 per square yard?
A.
50 square yards
B.
278 square yards
C.
500 square yards
D.
192 square yards
Hint
5.
Which of the following systems of equations is inconsistent?
A.
y
= 2
x
– 3
y
= –3
x
+ 4
B.
3
y
+ 2
x
= 13 6
y
+ 4
x
= 3
C.
4
y
–
x
= 12 3
y
– 2
x
= 1
D.
y
= 7
x
– 2
y
= –2
x
– 5
Hint