1.
State the number of solutions to the system of equations graphed below.
A.
2
B.
1
C.
0
D.
infinitely many
Hint
2.
When two lines have different slopes, the graphs of the equations are _________
A.
the same line.
B.
horizontal lines.
C.
intersecting lines.
D.
parallel lines.
Hint
3.
State the solution of the system of equations graphed below.
A.
(3, -1)
B.
(3, 1)
C.
(-1, 3)
D.
(0, 3)
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.
500 square yards
B.
50 square yards
C.
278 square yards
D.
192 square yards
Hint
5.
Which of the following systems of equations is inconsistent?
A.
y
= 7
x
– 2
y
= –2
x
– 5
B.
y
= 2
x
– 3
y
= –3
x
+ 4
C.
3
y
+ 2
x
= 13 6
y
+ 4
x
= 3
D.
4
y
–
x
= 12 3
y
– 2
x
= 1
Hint