# Practice Test for Exam 4 – Sections 2.4-2.6 &amp; 2.8

advertisement ```MATH 0930
Beginning Algebra Part 1
K.Rigdon
Name_________________________
Practice Test for Exam 4 – Sections 2.4-2.6 &amp; 2.8
Due (optional) on Exam Day – Tuesday, 10/21/2014
This practice test will give you a good idea of the type and number of problems you will see on the
actual test. Working through this practice test will, therefore, provide you with a good idea of how
well you know the material you will be tested over. This time the actual test will probably have a
couple of questions less than you see here
You have the opportunity to earn 3 extra credit points toward your test grade if you show all
work possible for all the problems and, of course, get all the answers correct (partial points can
be earned as well; answers are included on the back for you to check your work). If you would like
to earn these extra points, you will need to turn in this paper, with all work attached (done on
separate lined paper), on the day of the Exam.
In addition to the questions over Section 2.4-2.6 &amp; 2.8 material, you will
have 4 questions like the Cumulative Review Questions you have been having in your homework
assignments or on Cumulative Review Worksheets, so be certain to go over them (but, you don’t have to
rework them to turn in with this). Specifically, these homework problems were:
Problems 1), 2), 3), &amp; 4):
Page 126; #105-108 all
Page 137; #91, 94-96 all
Page 170; #66-68 all
Solve for x.
5)
7)
4 + 2x = 8
-2(x + 3) + 4x = 8
6)
8)
9)
2 1
 x2
14 7
10)
2x – 3 + x = -9
-4 (x – 1) – 5 (2 – x) = -6
x3
 2
5
11)
13)
0.4x – 0.6x – 5 = 1
2x  3  9x  3x  3  10x
12)
14)
x – 4x = 20 – 5x
15)
-7 (-x + 3) – 2x = 5 (x – 4) – 2
16)
17)
2 x  3
 6x  2
3
5
4
7
x x
9
3
6
18)
0.6x – 1 = 0.5x + 2
6  3x  5x  1  3x  2
Solve the following equations for the given variable.
19)
Solve
P = 2(L + W)
20)
Solve
V  r h
21)
22)
Solve
Solve
3x – 2y = 12 for y, in the form y = mx + b.
y – 4 = 2(x + 3) for y, in the form y = mx + b .
1
3
2
for W.
for
h.
Solve the inequality, then graph the solution on a real number line &amp; express solution in interval
notation:
23)
25)
-4x + 7 &lt; -9
8x – 6 &lt; 3 (x – 1) + 5x
24)
26)
-2x – 4 &gt;2 (x – 8)
2 (4x – 1) &lt; 3x + 3 (x – 2)
Practice Test Answer Key
1, 2, 3), &amp; 4) Check answers in book
5)
x=2
6)
x = -2
7)
x=7
8)
x=0
9)
x = -13
10)
x = -13
11)
x = -30
12)
x = 10
13)
x =  (all real numbers)
14)
x = -5
15)
x=
16)
x =  32 (or - 1 12 )
17)
x=0
18)
x = 30
19)
W
20)
h  3Vr 2
21)
22)
23)
y  32 x  6
y  2 x  10
x&gt;4
[4, )
24)
x&lt;3
(, 3)
25)
x= 
( ,  )
26)
x &lt; -2
0
(the empty set – no solution)
P  2L
2
or W 
P
2
L
( ,  2]
```