1.
Sarah must maintain a balance of at least $500 in her checking account to avoid finance charges. If her current balance is $794, write an inequality to determine how many times she can withdraw $25 for shopping without paying finance charges.
A.
25
w
794
B.
25
w
106
C.
25
w
500
D.
25
w
294
Hint
2.
Which inequality is graphed below?
A.
y
< 8
B.
y
>
8
C.
y
<
8
D.
x
< 8
Hint
3.
Use substitution to solve the system of equations given below.
8
x
- 4
y
= 16
2
x
-
y
= 4
A.
no solution
B.
(2, 0)
C.
infinitely many solutions
D.
(0, -4)
Hint
4.
Use elimination to solve the system of equations.
-
x
+ 2
y
= 18
x
+ 8
y
= -38
A.
B.
(-5, -1)
C.
(-22, -2)
D.
Hint
5.
Find a solution to the equation by doing the same thing to both sides.
3(5
f
+ 7) + 9(
f
+ 4) = 9
A.
f
= –10
B.
f
= –12
C.
f
= –9
D.
f
= –2
Hint
6.
Tamara and Joanne collect stamps. Tamara has 30 less than 5 times the number of stamps that Joanne has. Tamara also has 42 more stamps than Joanne. How many stamps does Tamara have?
A.
18
B.
23
C.
42
D.
60
Hint
7.
Use a graphing calculator to graph
y
= 8
x
– 2
x
2
. Estimate the highest point on the graph.
A.
(8, 2)
B.
(2, 8)
C.
(3, 7)
D.
(7, 3)
Hint
8.
Choose the correct graph of
y
= 12
x
– 3
x
A.
B.
C.
D.
Hint