Download Lessons 31-40

13. The table lists the ordered pairs from a relation. Determine whether the relation
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represents a function. Explain why or why not
Domain (x)
1
0
2
1
3
Range (y)
5
6
4
8
3
14. If there are 60 dozen pencils in 12 cartons, how many are in 1 carton?
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15. Multi-Step How many seconds are in 1 day?
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16. Roller Coasters The table shows the number of roller coasters in several countries.
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Suppose one student displays the data in a bar graph, and another student makes a
circle graph of the data. Compare the information that each type of display shows.
Roller Coasters Worldwide
Country
Japan
Number
240
United
South
United
Canada
Germany France China
States
Korea
Kingdom
160
108
65
60
54
51
624
17. If there are 720 pencils in 6 cartons, how many dozen pencils are in 10 cartons?
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18. Multi-Step How many centimeters are in 1 kilometer?
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*19. Geography On a map, Brownsville and Evanstown are 2.5 inches apart. The scale
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on the map is 1 inch:25 miles. How far apart are the two towns?
20. Copy and complete the table for y = ⎢x + 10. Then use the table to graph the
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equation. Is the graph of the equation a function?
x
-3
-2
-1
0
1
2
y
*21. Multiple Choice Which expression is simplified?
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6xy2
6x3y-2
6x3y2
_
_
_
A
B
C
z
z
z0
3 2
D
6x y z
_
z
*22. Chemistry An electron has a mass of 10-28 grams and a proton has a mass of
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10-24 grams. How many times greater is the mass of a proton than the mass
of an electron?
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Saxon Algebra 1