1.
Express 0.0000421 in scientific notation.
A.
4.21 × 10
-4
B.
4.21 × 10
-6
C.
4.21 × 10
-5
D.
4.21 × 10
-9
Hint
2.
Use elimination to solve the system of equations.
-
x
+ 2
y
= 18
x
+ 8
y
= -38
A.
B.
(-22, -2)
C.
D.
(-5, -1)
Hint
3.
Select the segment that has been bisected.
A.
B.
C.
D.
Hint
4.
What is the solution of the system of equations shown below?
A.
(0, -3)
B.
(1, -2)
C.
(0, 0)
D.
(3, 0)
Hint
5.
If a rocket is fired from the ground with an initial velocity of 75 meters per second, then the height of the rocket after
t
seconds is
h
= 75
t
- 4.9
t
2
. Find the height of the rocket after 3 seconds.
A.
130.4 meters
B.
252.5 meters
C.
180.9 meters
D.
221.6 meters
Hint
6.
Express
in simplest form.
A.
B.
C.
D.
Hint
7.
Find the equation that contains a decreasing linear relationship.
A.
y
= 12+ 2
x
B.
y
= 4
x
– 3
C.
y
= 10 +
x
D.
y
= 5 – 6
x
Hint
8.
Which line is parallel to the line listed below?
A.
y
= 2
x
- 5
B.
C.
D.
Hint
9.
Which equation represents exponential growth?
A.
y
= 250 × 4
x
B.
y
= 250 × 0.25
x
C.
y
= 250 ·
x
D.
y
= 250 × 0.4
c
Hint
10.
Which equation represents exponential decay?
A.
y
= 63 × 4.4
x
B.
y
= 63 × 0.4
x
C.
y
= 63 × 4
x
D.
y
=
· 63
x
Hint
11.
Find the table that does not represent an exponential equation.
A.
B.
C.
D.
Hint
12.
Find a solution to the equation using backtracking.
A.
c
= 8
B.
c
= –14
C.
c
= –1
D.
c
= 2
Hint
13.
Choose the correct graph of
y
= 12
x
– 3
x
A.
B.
C.
D.
Hint
14.
Select the figure that is a reflection.
A.
B.
C.
D.
Hint
15.
Scale the figure below by
.
A.
B.
C.
D.
Hint
16.
Use the projection method to scale this polygon by a factor of
.
A.
B.
C.
D.
Hint
17.
Solve the equation by backtracking.
A.
f
= –28
B.
f
= –24
C.
f
= 16
D.
f
= –21
Hint
18.
Find the quadratic equation with 0 solutions.
A.
x
2
– 2
x
– 3 = 0
B.
x
2
– 2
x
+ 5 = 0
C.
x
2
+ 4
x
– 12 = 0
D.
x
2
– 12
x
+ 36 = 0
Hint
19.
Find the domain of the function.
y
= –
x
+ 3
A.
all real numbers
B.
all real numbers except –3
C.
all real numbers except 1
D.
all real numbers except 3
Hint
20.
Suppose you spin two spinners, each numbered 1 to 4, and multiply the two outcomes. How many possible number pairs can you roll?
A.
8
B.
4
C.
10
D.
16
Hint