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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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x

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y

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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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x

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x

13. Which of the following equations shows the relationship of pounds,

p

, to ounces,

z

?

(1 pound = 16 ounces)

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z

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p

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z

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p

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p

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z

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p

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z

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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y

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y

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y

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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y

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x

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y

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40. Which is the slope of the line graphed below?

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