Test Bank for Intermediate Algebra An Applied Approach 9th Edition By Richard Aufmann, Joanne Lockwood.

1. Determine which of the numbers are a. integers, b. rational numbers, c. irrational
numbers, d. real numbers. List all that apply.
11 6
 , 1, –8, , 6.44, 5.595595559...,  ,6
3 5
A) a. integers: 1, –8
b. rational numbers: all
c. irrational numbers: none
d. real numbers: all
B) a. integers: all
6
,6
5
b. rational numbers: ,5.595595559...,

c. irrational numbers:  , 1, –8, 6.44
d. real numbers: 1, –8
C) a. integers: all

b. rational numbers:  , 1, –8, 6.44
c. irrational numbers: 6 ,5.595595559...,
,6
5
d. real numbers: 1, –8
D) a. integers: 1, –8

b. rational numbers:  , 1, –8, 6.44
c. irrational numbers: 6 ,5.595595559...,
,6
5
d. real numbers: all
E) a. integers: 1, –8
6
,6
5
b. rational numbers: ,5.595595559...,

c. irrational numbers:  , 1, –8, 6.44
d. real numbers: all


2. 2
Find the additive inverse of  .
7


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, A) –14
B)

C)


D) –4
E)




3. Find the additive inverse of –19.
A) 1


B)

19
C) 19
D) –19
E) 19



4. Find the additive inverse of –3.87.
A) 3.87
B) 1

3.87
C) 3.87
D) 1

3.87
E) –3.87


5. Find the additive inverse of 7.
A) 7
B) 1


C)



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, 
7
D) 7
E) –7


6. Let y{–7,–2,8}. For which values of y
is y  –2 true?
A) –2
B) –7, –2, 8
C) 8
D) –7
E) –7, –2



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7. Let x{–11,–4,6}. For which values of x is x  –4 true?
A) –11, –4
B) –11, 6
C) 6
D) –11, –4, 6
E) –11


8. Let w{–9,–6,4,5}. For which values of w is w  –6 true?
A) –9
B) 4, 5
C) –9, –6
D) –9, –6, 4
E) 4


9. Let p{–12,–5,3,4}. For which values of p is p3 true?
A) –12, –5
B) 3, 4
C) 4
D) –12, –5, 3
E) –12


10. Let b{–7,0,2}. Evaluate b for each element of the set.
A) 7, 0, 2
B) 7, 1, –2
C) –7, 0, 2
D) –7, 0, –2
E) 7, 0, –2




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