Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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Graph the relation in the table. Then use the vertical-line test. Is the relation a
function?
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| 1. |
a. | The relation is
a function. | c. | The relation is
a function. | b. | The relation is not a function. | d. | The relation is not a function. | | | | |
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| 2. | Find
the solution of y = 6x + 1 for x = 5. a. | (5,  ) | b. | (–29, 5) | c. | (5, 36) | d. | (5, 31) | | | | | | | | |
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| 3. | Which
ordered pair is a solution of the equation 5x + y = –23? a. | (–3,
–4) | b. | (–5,
–3) | c. | (–4,
–3) | d. | (–3,
–5) | | | | | | | | |
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| 4. | Dennis takes care of private swimming pools. He charges $50 to travel to a home and
then $30 per hour. The equation t = 50 + 30h models the total charge t for
h hours of service. Which ordered pair (h, t) is NOT a solution for the
equation? a. | (8,
290) | b. | (10,
350) | c. | (2,
110) | d. | (3,
180) | | | | | | | | |
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Graph the linear equation.
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| 5. | y =  x – 5
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| 6. | x = 2
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Solve the equation for y. Then graph the equation.
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| 7. | 5x – 4y = 12
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Find the slope of the line.
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| 8. |
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Find the slope of the line through the pair of points.
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| 9. | C(–6, –7), K(–1, –7)
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Identify the slope and y-intercept of the graph of the equation. Then graph
the equation.
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| 10. | y =  x + 1 a. | slope:  ;
y-intercept: –1
| c. | slope:  ; y-intercept:
1
| b. | slope:  ;
y-intercept: 1
| d. | slope:  ; y-intercept:
–1
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| 11. | a. | slope: –1;
y-intercept: 0
| c. | slope: 0;
y-intercept: 0
| b. | slope: 1; y-intercept: 0
| d. | slope: –1; y-intercept:
0
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| 12. | The
sales tax in one state is 7%. Write a function rule for finding the total cost of an item with
selling price x. Then find the total cost of a CD player with a selling price of
$150. a. | f(x) = x – 7; $148.93 | c. | f(x) = 7 + x;
$151.07 | b. | f(x) = 0.07x;
$10.50 | d. | f(x) =1.07x; $160.50 | | | | |
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Write a rule for the linear function in the table.
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| 13. |
a. | f(x) = –4x | b. | f(x) = x +
16 | c. | f(x) = 4x | d. | f(x) =  x | | | | | | | | |
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| 14. |
a. | f(x) = 4x | b. | f(x) = x –
4 | c. | f(x) = x + 4 | d. | f(x) = 4 –
x | | | | | | | | |
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| 15. | Write
a rule for the linear function in the graph.
a. | y =  x + 13 | b. | y =  x – 13 | c. | y =  x –
13 | d. | y =  x – 13 | | | | | | | | |
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| 16. | The
scatter plot shows the number of students per class at Monida Middle School and the number of
magazine subscriptions each class sold for a fund-raiser. About how many subscriptions did the class
of 30 students sell?
a. | about 185
subscriptions | c. | about 165
subscriptions | b. | about 175 subscriptions | d. | about 195 subscriptions | | | | |
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| 17. | Use
the table to make a scatter plot of the temperature and the number of ice cream cones sold at the
school cafeteria.
Temperature | Number of
Cones Sold | 59 | 58 | 76 | 83 | 94 | 102 | 67 | 73 | 85 | 99 | 74 | 78 | 97 | 107 | | |
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Solve the system of equations by graphing.
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| 18. | y =  x + 3
y =  x – 7
a. | (–4, 1) | c. | (–4, 1) | b. | (0,
0) | d. | (–4,
1) | | | | |
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| 19. | a. | (2,
5) | c. | (2,
4) | b. | (5,
2) | d. | (4,
2) | | | | |
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| 20. | a. | (5,
–5) | c. | (1,
2) | b. | (–10,
–5) | d. | (6,
–3) | | | | |
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| 21. | a. | infinitely many
solutions | c. | (2,
3) | b. | no
solution | d. | (3,
5) | | | | |
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| 22. | Find
two numbers with a sum of 20 and a difference of 14. a. | 4 and
18 | c. | 2 and
16 | b. | –3 and
–17 | d. | 3 and
17 | | | | |
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Graph the inequality on a coordinate plane.
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| 23. |
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| 24. | x 
–2
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Write a linear inequality for the graph.
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| 25. |
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Solve the system of inequalities by graphing.
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| 26. |
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| 27. |
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