Algebra- Functions (multiple choice)

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To: Trapasso, Tyler FT 2013 GRAD@Beacon High School

Date: Tuesday, January 29, 2013

Re: Home > New Algebra I (2010 Edition) Semester 2

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New Algebra I (2010 Edition) Semester 2
anyteacher and Mrs. Darrow

Submission 26: Functions
You have looked at it once before. There are 25 questions worth 28 points.

Part 1
Select the best answer from the choices provided. (Each question is worth one point)

1. Given the function f(x) = 9x + 11, evaluate f(6).
4.8 17

65 93

2. Given the function f(x) = 16x + 9, evaluate f(16).
265 25

15.4 128

3. Given the function f(x) = 12x + 9, evaluate f(12).
96 21

11.3 153

4. Given the function f(x) = 9x + 1, evaluate f(2).
0.9 2

18 19

5. Given the function f(x) = 3x + 16, evaluate f(19).
29 35

13.7 73

6. Given the function f(x) = 10x + 3, evaluate f(17).
20 173

16.

7 13

7. What is the range of the following function?

f(x) = !x – 3 + 2
x ” 2 f(x) ” 2

x ” 3 f(x) ” 3

8. What is the range of the following function?

f(x) = x3 – 4

x ” 3 f(x) ” 4

x ” 0 all real numbers

9. What is the domain of the following function?

f(x) = !x – 8
f(x) ” 8 x ” 8

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f(x) ” 8 x ” 8

f(x) # 8 x # 8

10. Given the function f(x) = 7×2 + 15, evaluate f(1).

104 1.4

-1.1 22

11. Given the function f(x) = 3×2 + 8, evaluate f(5).

1 83

2.3 19

12. Given the function f(x) = 9×2 + 4, evaluate f(4).

32 0

148 3.6

13. Given the function f(x) = 6×2 + 1, evaluate f(5).

151 0.8

4.8 1

14. Given the function f(x) = 4×2 + (-3x) + (-2), evaluate f(-7).

153 803

48 215

15. Given the function f(x) = 2×2 + 2x + (-5), evaluate f(2).

15 3

7 13

16. Given the function f(x) = 2×2 + 7x + 5, evaluate f(7).

250 152

63 145

17. Given the function f(x) = -7×2 + (-7x) + (-2), evaluate f(-1).

-2 54

-15 12

18. Given the function f(x) = !3 – x + 2, evaluate f(-1).
-2 !2

4 0

Part 2
Select the best answer from the choices provided. (Each question is worth one point)

19. Kelly and Zach are selling cookies at a bake sale. The ingredients for the cookies cost $25, and they are selling the cookies for $2 each. Construct
a function that computes the profit they will make by selling cookies.

P(c) = 25c + 2 P(c) = 2c + 25

P(c) = 25c – 2 P(c) = 2c – 25

20. Rick and Steve are selling cookies at a bake sale. The ingredients for the cookies cost $24, and they are selling the cookies for $1 each. Construct
a function that computes the profit they will make by selling cookies.

P(c) = 24c + 1 P(c) = c + 24

P(c) = 24c – 1 P(c) = c – 24

21. Rick and Steve are selling cookies at a bake sale. The ingredients for the cookies cost $24, and they are selling the cookies for $1 each. If profit is
modeled as a function, what is the range of this function?

{-24, -22, … 2, 4, 6} {-24, -23, …}

{-24, -23, …, 94, 96} {1, 2, 3, 4…}

22. Bob and Ally are organizing a school dance party. The expenses for the party are $88, and they are selling the tickets to the party for $11 each. If
profit is modeled as a function, what is the domain of this function?

{11, 12, 13, …, 86, 87, 88} {0, 1, 2, …}

{-88, -77…} {-88, -86, …}

Part 3
Type the answer to the question in the textbox below each item. (Each question is worth two points)

23. Does the following graph represent a function?

23. Does the following graph represent a function?

24. Does the following graph represent a function?

25. Does the following graph represent a function?

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