A2 DPM Review GAME 2014.notebook. December 09, 2014

Transcription

1 December Calendar Game: Students play in pairs or small groups (teams). They will keep track of their own points. Teams take turns picking a day of the month (in any order). Click on the picture to go to a math problem. (When done with the problem, you may want to use the pen to mark through the day so all know it has been used.) To return to the calendar page, click on the snowflake. All teams work the given problem, and record their answer on a marker board or index card. The team that picked the calendar day gets to answer the problem first. If they get it right, they get 10 points, and other teams get 0 points. If they get it wrong, they get 0 points, and 10 points will be given to all other teams that have it right (as shown on their board/card). Answers are hidden behind the snow globe. Some problem pages have BONUS questions (pull star that has a "Q"). 5 extra points can be gained if a team answers it correctly (answers are on the star that has an "A"). Some pages don't have a question at all. Those pages will either award extra points (or take away points) for the team that picked that day. Anytime you see a music symbol, click for music. The team with the most points "wins". 1

2 Jan. 1 2

3 19. Which of the following is another way to write the equation? A. C. B. D. 3

4 23. Identify which expressions are equivalent to? A. B. C. D. Q B and D A 4

5 28. Two functions are given below. What value is missing in the table? x g(x)

6 2. Oh, no! Santa got lost on his way to your house. You lose 5 points! 6

7 3. The graph of f(x) is shown below. Which of the following best describes the solution set of f(x) = 0? A. There are two real solutions. B. There is one real solution. C. There are two imaginary solutions. D. There is one imaginary solution. Q A 7

8 4. How many roots (and of what type) does the equation 0 = 2x x + c have, if c = 21? A. one real root B. two real roots C. two imaginary roots D. there is not enough information to determine this 8

9 5. What are the solutions of the equation x = 4x?? Q A 9

10 13. Which equations describe a function with roots of 2 and 7? A and D A. y = (x + 2)(x 7) B. y = (x 2)(x + 7) C. y = x 2 2x + 7x 14 D. y = x 2 + 2x 7x 14 Q A 10

11 10. Which point is the solution to the system? A. (1, 2) B. (0, 1) C. ( 2, 1) D. (0, 5) 11

12 29. The absolute value function g(x) = x is graphed along with the line y = 3. What is the solution set of the equation g(x) = 3? A. { 2, 8} B. { 5, 10} C. { 5, 11} D. {3, 5} Q A C 12

13 11. Way to go! You helped clean the house before holiday visitors arrived. You earn 5 points. :o) 13

14 12. What are the solution(s)to the system represented on the graph? (2, 0) and (8, 6) 14

15 6. What is the solution to the system of equations shown below? x + y = 17 y = x + 7 (5, 12) 15

16 14. Jimmy is solving the following quadratic inequality: x 2 6x + 8 < 3 Which table of values shows the correct solutions circled? A. B. C. C 16

17 7. The formula A = 1 bh represents the area 2 of a triangle with base, b, and height, h. If the base of the triangle is 6 more than double its height, which equation represents area in terms of height? A. h 2 + 3h B. h + 3 C. 2h + 6 D. h

18 9. A stuntwoman jumps from a building 73 ft high and lands on an air bag that is 9 feet tall. Her height above ground, h (in feet), can be modeled by h(t) = 73 16t 2, where t is the time in seconds. The graph below shows this function. How long will she be in the air before she hits the air bag? 2 sec 18

19 27. Suppose the function below is shifted 4 units to the left and expanded by a factor or 2. Determine an equation that could represent the new graph. y = 2(x +3)

20 8. Mr. Magoo visits the zoo. He sees a cage containing birds and lizards. He counts 17 heads and 48 legs in the cage. Which system of equations can be used to find the number of birds, b, and lizards, z? A. b + z = 17 C. b + z = 17 4b + 2z = 48 2b + 4z = 48 B. b + z = 48 D. b + z = 48 4b + 2z = 17 2b + 4z = 17 C 20

21 31. So sad... Frosty the Snowman melted! Lose 5 points. 21

22 30. Simplify: 2x(x 5) + 3x (x 2 7) x 2 7x

23 1J. What is the vertex of the quadratic function represented in the table? A. (2, 12) B. (3, 8.67) C. (5, 6) D. (6, 6.67) x y D 23

24 26. What is the range of the function g(x) = (x + 2) 7? A. y < 2 B. y < 7 C. y > 2 D. y > 7 D 24

25 15. Brrrrrr... There's a blizzard! Lose 5 points. 25

26 20. What is the vertex of the function below? h(x) = 3(x 7) points: What is the name of this song (click to hear)? Q Santa Claus is Coming to Town A (7, 12) 26

27 17. Factor completely. x 2 3x 28 A. (x + 7)(x + 4) B. (x 7)(x 4) C. (x + 7)(x 4) D. (x 7)(x + 4) D 27

28 18. What is the value of x in the solution for this system of equations? 5x + 2y = 1 3x + 7y = 11 A. 1 B. 2 C. 1 D. 2 C Q + 5 points: On what day of this month is the winter solstice ("shortest" day of the year)? A Dec 28

29 1. Abominable Snowboards charges $15 for equipment rental plus $35 per hour for snowboarding lessons. Snowflake Boards charges $40 for equipment rental plus $25 per hour for lessons. For what number of hours is the cost of equipment and lessons the same for each company? 2.5 hours 29

30 16. Oh, no! Grandma got run over by a reindeer! Lose 5 points. 30

31 21. A quadratic function, f, is shown on the graph below. What is the solution to the inequality f(x) < 5? + 5 points: In the movie Home Alone, a young boy is abandoned when his parents rush to a holiday vacation in this city. A. {x x < 5} B. {x 1 < x < 5} C. {x x < 0 or x > 4} D. {x 0 < x < 4} Q Paris, France A D 31

32 25. Melissa plans to make a casserole for a party. She purchases meat for $6 per pound, sausage for $3 per pound, and rice for $1 per pound. She spends $42 on 13.5 pounds of food. She buys twice as much rice as sausage. Let m represent pounds of meat, s represent pounds of sausage, and r represent pounds of rice. Write a system of equations that could be used to determine how much meat, sausage, and rice she purchases. 6m + 3s + r = 42 m + s + r = 13.5 r = 2s Q A 32

33 22. Bummer! Your dream vacation to the Bahamas was cancelled. Lose 5 points. 33

34 24. What is the solution set for the equation x(x + 6) = 5? A. { 5, 1} B. {1, 5} C. { 6, 5} D. { 5, 6} Q A A 34

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