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Chapter 1 - Assessment

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 
 
Find the absolute value.
 

 1. 
| 9 |
a.
| 9 |
c.
| –9 |
b.
–9
d.
9
 

 2. 
| –7 |
a.
| –7 |
c.
| 7 |
b.
–7
d.
7
 

 3. 
| –13 |
a.
| 13 |
c.
–13
b.
13
d.
| –13 |
 
 
Evaluate the expression.
 

 4. 
9 – (–4)
a.
–13
c.
13
b.
–5
d.
5
 

 5. 
mc005-1.jpg
a.
–70
c.
–56
b.
–84
d.
70
 

 6. 
mc006-1.jpg
a.
mc006-2.jpg
c.
–16
b.
mc006-3.jpg
d.
16
 

 7. 
–6 + 16
a.
10
c.
–10
b.
–616
d.
–22
 

 8. 
0 + (–16)
a.
–160
c.
0
b.
16
d.
–16
 

 9. 
19 – (–9) – 6
a.
22
c.
–22
b.
34
d.
16
 

 10. 
–7 – (–3)
a.
10
c.
–4
b.
–10
d.
4
 

 11. 
–16 – 13
a.
29
c.
–3
b.
3
d.
–29
 

 12. 
mc012-1.jpg
a.
–81
c.
81
b.
–18
d.
90
 

 13. 
mc013-1.jpg
a.
29
c.
–30
b.
34
d.
30
 
 
Evaluate the expression when a = –40, b = 5, and c = –4.
 

 14. 
mc014-1.jpg
a.
–48
c.
45
b.
–45
d.
–35
 

 15. 
mc015-1.jpg
a.
–2
c.
3
b.
2
d.
50
 

 16. 
mc016-1.jpg
a.
–1
c.
–9
b.
3
d.
1
 

 17. 
mc017-1.jpg
a.
12
c.
–12
b.
192
d.
–192
 
 
Find the mean of the integers.
 

 18. 
–18, –19, 5, –5, –1
a.
–7.6
c.
–5
b.
7.6
d.
–8
 

 19. 
–32, –38, 3, 17, 26, –12
a.
–7
c.
6
b.
–6
d.
–4.5
 

Other
 

 1. 
Extended Response The expression 9a + 6s is the cost for a adults and s students to eat at a buffet restaurant.
a.   Find the total cost for 4 adults and 28 students.
b   You find the cost for a group. Then the numbers of adults and students in the group both double. Does the cost double? Explain your answer using an example.
c.   The number of adults doubles, but the number of students is cut in half. Is the cost the same? Explain your answer using an example.
 



 
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