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
294
D.
25
w
500
Hint
2.
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
3.
Use elimination to solve the system of equations shown below.
2
x
- 4
y
= -5
3
x
+ 4
y
= -15
A.
B.
C.
D.
Hint
4.
Draw the graph of
y
< 0.5
x
+ 1.
A.
B.
C.
D.
Hint
5.
Find a solution to the equation using backtracking.
A.
n
= –89
B.
n
= 10
C.
n
= –12
D.
n
= –100
Hint
6.
John and Margaret have both ridden on the roller coaster called
The Scream
. Margaret has ridden it eight more than three times the number than John has. She also has ridden it five times the number John has. How many times has John ridden
The Scream
?
A.
6
B.
20
C.
3
D.
4
Hint
7.
A ball is launched straight up from ground level modeling the equation
h
= 52
t
– 10
t
2, where
h
stands for height in meters and
t
stands for time. What is the approximate value of
t
when the ball hits the ground?
A.
2.6 seconds
B.
6.0 seconds
C.
0 seconds
D.
5.2 seconds
Hint
8.
How many solutions can a graph of
y
=
a
x
2
+
b
x
+
c
have?
A.
one
B.
two
C.
zero
D.
all answers are correct
Hint