Description
1. Is this relation a function, {(–5, 7), (–2, –1), (0, 3), (4, 7)}?
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2. Is this relation a function, {(–8, –4), (–2, 0), (1, 3), (–2, 6)}?
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3. Which of the following ordered pairs is a solution for the equation
y
= 2
x
+ 7?
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4. Which of the following ordered pairs is a solution for the equation
y
= –3
x
– 4?
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5. What is the slope of the line that goes through the points of the pair
T
(0, 5),
U
(–3, –2)?
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6. What is the slope of the line that goes through the points of the pair
Q
(9, 5),
R
(4, –5)?
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7. What is the slope of the line that goes through the points of the pair
C
(1, 7),
D
(–8, 7)?
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8. What is the
y
–intercept of the graph of the equation
y
= –4
x
+ 7?
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9. What is the
y
–intercept of the graph of the equation
y
= –2
x
?
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10. What is the
y
–intercept of the graph of the equation
y
= 1.9?
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11. Which of the following equations gives the same relationship between
x
and
y
as
x
+
y
= 6?
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12. Which of the following function equations describes the number of centimeters
y
as a function of a number of millimeters
x
? (1 cm = 10 mm)
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13. Which of the following equations shows the relationship of pounds,
p
, to ounces,
z
?
(1 pound = 16 ounces)
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p
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14. Which of the following will show a scatter plot with a positive correlation between the number of pages in each magazine and the weight of each magazine?
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15. Which of the following pairs of data sets would most likely have no correlation?
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16. Which of the following ordered pairs is a solution for 4
x
– 3
y
= 6?
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17. What is the slope of the line that goes through
A
(2, 6) and
B
(8, –1)?
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18. What is the slope of the graph of 3
x
– 2
y
= 6?
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19. What is the
y
–intercept of the graph of 3
x
– 2y = 6?
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20. What is the solution of the system
y
=
x
+ 4;
y
= 4
x
+ 1?
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21. How many solutions does the system 2
x
+ 4
y
= 10;
x
+ 2
y
= 10 have?
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22. Using the system
x
+
y
= –6;
x
–
y
= 2, how are the
x
–coordinate and the
y
–coordinate of the solution related?
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23. Which of the following inequalities has the same solutions as
?
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24. Which of the following describes the graph of
?
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25. You want to spend less than $20 on asparagus and green beans. Asparagus costs $3.00 per pound and green beans cost $0.50 per pound. Let
a
represent the asparagus and
g
represent the green beans. Which of the following inequalities models what you can spend?
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26. Which of the following inequalities would have a graph with shading below a dashed boundary line?
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27. Which of the following points is a solution of the system
?
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28. Is this relation a function, {(–4, –6), (–3, –2), (1, –2), (1, 0), (1, 3)}?
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29. Is a person’s age a function of his or her height?
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30. Which of the following points is a solution of the system
y
=
x
+ 2;
y
= 2
x
– 2?
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31. Which relation is a function?
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32. Which graph represents the given equation
?
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33. Which ordered pair is a solution to
?
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34. Which ordered pair is a solution to
?
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35. Which ordered pair is a solution to this system:
?
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36. What is the slope of this line?
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37. What kind of line would be drawn that has a zero slope?
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38. What is the y-intercept of this equation:
?
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39. Which equation matches the coordinates in the table below?
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40. Which is the slope of the line graphed below?
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