Pre-Algebra Semester 2 Practice Exam DRAFT

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1 Pre-Algebra Semester 2 Practice Eam DRAFT. There are 0 ellow and purple marbles in a bag. If one marble is randoml picked from the bag, what are the odds in favor of it being ellow? A. :2 B. 2: C. 2: D. :2. The data below shows the number of minutes plaers on a basketball team spent practicing free throws before the big game. Time Spent Practicing Free Throws (minutes) Which stem-and-leaf plot accuratel displas the data? 2. This question obsolete as of A. Stem Leaf Ke: 4 2 = 42 min B. Stem Leaf Ke: 4 2 = 42 min C. Stem Leaf Ke: 4 2 = 42 min D. Stem Leaf Ke: 4 2 = 42 min GO ON Clark Count School District Revised 08/02/20

2 Use the plot below for questions 4 and. The bo-and-whisker plot shows the test scores of the students in a math class. Collection Bo Plot Pre-Algebra Semester 2 Practice Eam DRAFT 7. The prices of nine backpacks are $4, $2, $, $2, $2, $2, $6, $67 and $7. What is the median price of the backpacks? 4. What is the interquartile range? A. B. C. 20 D Math_Scores. What percent of student scores fall between 6 and 9? A. $2 B. $7 C. $4 D. $46 8. This question obsolete as of This question obsolete as of A. 2% B. 0% C. 0% D. 7% 6. The chart shows prices for two different brands of taff. The pattern of prices continues for heavier bags. TAFFY PRICES Bag Weight Brand X Brand Y lb $.2 $2.7 2 lb $.7 $4.7 lb $8.2 $6.7 4 lb $0.7 $8.7 What is the cost of a 7-pound bag of Brand Y taff? A. $2.7 B. $.2 C. $4.7 D. $ GO ON Clark Count School District Revised 08/02/20

3 Pre-Algebra Semester 2 Practice Eam DRAFT 0. This question obsolete as of A fair number cube is rolled two times. What is the probabilit an even number and then a number greater than 4 will be rolled? A. 8 B. 6 C. 4 D What is 40% of 00? A. 20 B. 0 C. 200 D GO ON Clark Count School District Revised 08/02/20

4 Pre-Algebra Semester 2 Practice Eam DRAFT. This question obsolete as of is 7% of what number? A. 27 B. 6 C. 64 D. 2. Jimm got a raise that increased his $6 per hour wage to $8 per hour. What was the percent of increase in his hourl wage? A. 2% B. % C. 7% D. % 6. This question obsolete as of This question obsolete as of GO ON Clark Count School District Revised 08/02/20

5 Pre-Algebra Semester 2 Practice Eam DRAFT 8. Which relation is a function? A. B. C. {( 2, 4), ( 2, ), (0, 2), (2, )} D What is the range of the relation below? 6, 2,,,, 4,, 2 A. 2,, 2, 4 B. 2,,, 2,, 4,, 6 C.,,, 6 D. 2, 4,, Which equation matches the coordinates in the table below? A. B C. 2 D Which ordered pairs represent the -intercept and -intercept of the equation below? 6 A. 2, 0 and 0, 6 B. 2, 0 and 0, 6 C. 2, 0 and 0, 6 D. 2, 0 and 0, GO ON Clark Count School District Revised 08/02/20

6 Distance (mi) Pre-Algebra Semester 2 Practice Eam DRAFT 22. What is the slope of the line graphed below? 24. A bicclist travels at miles per hour. Which line best represents this scenario? D C B 0 A A Time (hr) B. C. D. A. A B. B C. C D. D 2. What is the slope of the line that passes through the points, 2 and 2, 2? A. 0 B. 4 C. 4 D. undefined GO ON Clark Count School District Revised 08/02/20

7 Pre-Algebra Semester 2 Practice Eam DRAFT 2. Which graph below represents the given equation? 26. Identif the slope and the -intercept of the line with the given equation: A A. Slope is 4 ; -intercept is 6 B. Slope is ; -intercept is 6 4 C. Slope is 4; -intercept is 6 D. Slope is 4; -intercept is 6 B is between what two whole numbers? A. 98 and 200 B. 99 and 00 C. 4 and D. and A right triangle is shown below. C. 2 Figure is not drawn to scale. What is the value of? A. 6 B. 9 D. C. 4 D GO ON Clark Count School District Revised 08/02/20

8 Pre-Algebra Semester 2 Practice Eam DRAFT 29. A rectangular photograph has side lengths of 7 inches and inches. To the nearest inch, how long is the diagonal of the photograph? A. 6 inches B. inches C. inches D. 20 inches 0. Which correctl orders the numbers from least to greatest? A B What is the distance between the given points? A. B. C. 2 D. 29, and 2,. This question obsolete as of This question obsolete as of C. D This question obsolete as of What are the coordinates of the midpoint of a line segment with the given endpoints? and 2, 2 8, 6 A., 9 B., C. 6, 8 D. 0, GO ON Clark Count School District Revised 08/02/20

9 Pre-Algebra Semester 2 Practice Eam DRAFT 6. This question obsolete as of This question obsolete as of This question obsolete as of This question obsolete as of GO ON Clark Count School District Revised 08/02/20

10 Pre-Algebra Semester 2 Practice Eam DRAFT 40. This question obsolete as of Building plans for a swimming pool in the shape of a rectangular prism show a length of 20 feet, width of 0 feet, and depth of 4 feet. The contractor decides to increase the length b feet. How man more cubic feet of water will the new swimming pool hold? A. 200 ft B. 800 ft C. 000 ft D. 800 ft 42. This question obsolete as of Find the difference A. 4 4 B. 4 2 C. 4 2 D This question obsolete as of This question obsolete as of GO ON Clark Count School District Revised 08/02/20

11 Pre-Algebra Semester 2 Practice Eam DRAFT 46. This question obsolete as of This question obsolete as of This question obsolete as of This question obsolete as of What are the coordinates of M and N after MN is reflected across the -ais? - N M - A. M, 2, N 4, B. M 4, 2, N, C. M 4, 0, N, D. M 4, 2, N, Clark Count School District Revised 08/02/20

12 Pre-Algebra Semester 2 Practice Eam Free Response DRAFT. The data below are the test scores of students in two different English classes. Class A: 0, 42, 0, 8, 60, 62, 70, 7, 76, 77, 79, 82, 8, 8, 96 Class B: 0, 62, 6, 70, 7, 74, 76, 78, 78, 79, 80, 8, 82, 82, 8 A. Create a bo-and-whisker plot for each set of data. Label each plot and an ke points. B. Using the graphs ou created, which class did better on the test overall? Eplain our thinking GO ON Clark Count School District Revised 08/02/20

13 Pre-Algebra Semester 2 Practice Eam Free Response DRAFT 2. You and a friend are knitting a sock that will be inches long. Your friend knits the first 2 inches then gives ou the sock to finish. You knit at a rate of. inches per hour. A. Write and graph an equation that shows the length L if ou knit h hours. Be certain to label the graph. B. Determine how man hours it will take ou to complete the sock. Show our work GO ON Clark Count School District Revised 08/02/20

14 Pre-Algebra Semester 2 Practice Eam Free Response DRAFT. Ann walks 9 blocks due west and 2 blocks due north to get to school. She returns home along a diagonal path. A. Draw and label a diagram of Ann s route. Determine the distance of the diagonal path that Ann followed. Show our work. B. Dave bikes 27 blocks due south and then 6 blocks due east to get to school. Both Ann and Dave follow a similar shaped route. How man times greater is the diagonal distance Dave traveled compared to the diagonal distance Ann traveled? Eplain our thinking Clark Count School District Revised 08/02/20

15 distance (miles) (miles) Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set A 2. Which point best represents the value of 4? Point A Point B Point C Point D 8. Let a 2 4, b 2 4, and c 2 4. Which is a true statement about the values of a, b, and c? a = b and b = c a = b and c < b a < b and c < a b < a and c < b 9. For which equation is A B C D a solution? 0. The graph shows the relationship between the number of hours Jane has been driving and the total distance she has traveled in miles. time (hours) Which statement is true? Jane s speed doubles ever hour. Jane is traveling at 0 miles per hour. Jane s speed is steadil increasing during her trip. Jane travels farther during the 2 nd hour of her trip than she does during the st hour of her trip. 22. Solve Clark Count School District Revised 02/06/20

16 Total Revenue Total Revenue Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set A 6. The table shows the relationship between the number of hours h John has been hiking and the total distance d he has traveled in kilometers. John h d Jason sells t-shirts for $ each. Choose the correct graph or table that shows the total revenue for his t-shirt sales. Number of t-shirts Total Revenue 0 2 $0 $0 $60 $90 The graph shows the distance Sara hiked over the same time period. d Sara Number of t-shirts Total Revenue 0 2 $ $0 $4 $60 Who hikes faster? Sara John The hike at the same rate. There is not enough information to determine. h Number of t-shirts Number of t-shirts Clark Count School District Revised 02/06/20

17 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set A. Find the slope of the line. 2. Choose the graph that shows a strong negative association between and Which pair of variables ma show a negative association? = the number of hours ou studied for a test = our test score = the number of pets ou own = our shoe size = average speed ou drove on a road trip = number of hours it took to reach our destination = number of tet messages ou send per month = cost of our monthl cell phone bill Clark Count School District Revised 02/06/20

18 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set A 6. Which equation best describes the line of best fit for the data shown in the scatter plot? Which graph shows the equation 4? Clark Count School District Revised 02/06/20

19 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set A 8. The table shows the game sstem that eight 8 th graders chose to be their favorite: X Bo Pla Station Wii Total Bos Girls Total Of the eight 8 th -graders surveed, what percentage is girls who prefer Wii? 22.% 2% 2.% 0% 9. A total of 00 people were asked which the preferred, hot dogs or hamburgers. Of the 00 people, 60 were male. Hot dogs were preferred b 60 females; hamburgers were preferred 70 males. Which two wa table represents this poll? 40. The two wa relative frequenc table show the results of whether people of different ages prefer to get their news through television or newspaper, or through an online source. 40 ears old or less Over 40 ears old Newspaper or Television Online Total 2% 20% 4% 9% 6% % Total 64% 6% 00% What conclusion can be made from the table? People less than 40 ears old prefer online news to newspaper/television. There were people who were 40 ears old or older and 4 people who were under 40 ears old. Online news is preferred overall to newspaper/television news. People over 40 ears old prefer newspaper/television news more than people who are 40 ears old or ounger. Preferred Preferred Hot Dogs Hamburgers Total Male Female Total Preferred Preferred Hot Dogs Hamburgers Total Male Female Total Preferred Preferred Hot Dogs Hamburgers Total Male Female Total Preferred Preferred Hot Dogs Hamburgers Total Male Female Total Clark Count School District Revised 02/06/20

20 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set A 42. Use the figure. 44. Using this graph, what is the first step in deriving = m + b? Choose the statement that is NOT true. B A AB CD BC DE D ABC CDE Slope of AC = Slope of CE ABC CDE C E (0, b) b Find the slope: m 0 Set = 0 and = b (, ) Use slope-intercept form: m b Write in Standard Form: A B C 4. Catherine plants five rows of flowers in her garden. She continues to work, planting one row ever 2 hours. Write a function to represent this situation. Let r represent the number of rows and h represent the number of hours she has been planting. h2r Let h represent the number of hours she has been planting and r represent the total number of rows she has planted. r h 2 Let r represent the first five rows and h represent the number of hours she has been planting. hr Let h represent the number of hours she has been planting and r represent the total number of rows she has planted. r 2h Clark Count School District Revised 02/06/20

21 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set A 46. Steve starts his own carpet cleaning business. He pas for some equipment to start his business and then charges a fied amount to clean a room. The graph models Steve s profit based on how man rooms he cleans. Profit ($) Which situation models a rate of $ per hour, where = number of hours and = total amount? Number of 0 Hours () Total amount () $2 $20 $ # Rooms Cleaned What does the -intercept in this graph represent? the amount of profit he makes per room the number of rooms he cleans the amount he charges per room the amount he spent for his equipment Clark Count School District Revised 02/06/20

22 distance from home distance from home distance from home distance from home Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set A 48. Jesse drives home from school, runs into the house and grabs his sweatshirt and quickl leaves the house to go to swim practice. Which graph best shows this situation? 49. The graph shows Lisa s walking speed on her treadmill. Approimatel how long did she maintain a constant speed? time Time (min) time minutes 20 minutes 0 minutes 6 minutes time time Clark Count School District Revised 02/06/20

23 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set B 2. Which value best represents the point shown on the number line below? Approimate to the nearest tenth Solve What is the slope of the graph? Which is a solution of ? Clark Count School District Revised 02/06/20

24 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set B 6. A salesperson s monthl wage is based on a percentage of the dollar value of the goods sold b the salesperson each month. Let W represent the monthl wage and S represent the dollar value of the goods sold. S The table and graph show the relationship between W and S for two different salespersons. Salesperson A W 0, ,000,600 0,000 2,400 40,000,200 W Salesperson B. Find the -intercept. ( 4, 0) (0, 4) (0, 2) (2, 0) 0,000 4, S Which salesperson earns a higher percentage of sales? Salesperson A Salesperson B The make the same percentage. It cannot be determined from 7. The unit rate on a linear graph is the same as the -intercept vertical change slope horizontal change Clark Count School District Revised 02/06/20

25 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set B 4. Which scatter plot has a strong positive association?. The table show the stud time and test scores for 8 students. Which scatter plot corresponds to the data? Stud Time (minutes) Test Score Test Score 0 Stud Time (min) Test Score 0 Stud Time (min) 00 Test Score Stud Time (min) 0 60 Test Score Stud Time (min) Clark Count School District Revised 02/06/20

26 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set B 6. The graph shows the number of members that have been in Theater club and the number of ears after the club began. 7. Which graph has the smallest -intercept? # of members Years since beginning Based on the trend shown in the data, predict the ear after which the club will have no members. ear ears 6 ears 8 ears Clark Count School District Revised 02/06/20

27 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set B 8. Eight teens were asked whether the are required to do chores and whether the have a curfew. The results are shown below. Have chores Do not have chores Have a curfew Do not have a curfew Total Total Find the relative frequenc of having chores among those who have a curfew. 0% 2% 0% 7% 9. Brand must conduct a surve where she needs to collect 00 pieces of categorical data. Which question below will give her categorical data? 40. The table below shows the voting results on a bill in the House of Representatives. Yes No Total Democrats 20% 22% 42% Republicans 7% 2% 8% Total 7% 4% 00% Which statement is true? Fewer representatives voted es than no. Republicans tended to vote es on the bill. Democrats tended to vote no. Both Democrats and Republicans tended to favor the bill. There are more Democrats than Republicans in the House of Representatives. How tall are ou? How much did ou spend on our last haircut? What is our luck number? How man points did ou score on our last math test? Clark Count School District Revised 02/06/20

28 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set B 42. Use the diagram below. 44. Choose the graph that represents 4. A B C D E In the diagram, ABC CDE. Which statement is true? The slope of AC = slope of CE The length of AB is twice the length of DE ABC CDE AB DE BC CE Clark Count School District Revised 02/06/20

29 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set B 4. The table shows the equivalent Fahrenheit temperature given the Celsius temperature. Celsius Fahrenheit Which equation models the conversion of Celsius to Fahrenheit? 47. Dave and Sara filled up their cars with gasoline at the beginning of the week. The equation and table compare the number of miles driven,, to the gallons of gasoline in the tank,. Dave: 8 20 Sara: F C 2 F C F C 8 F C 8 9 Whose car gets better gas mileage (i.e more miles per gallon)? Dave Sara The get the same gas mileage. It cannot be determined from the information given. 46. Catherine is a car saleswoman. She is paid a base salar of $200 per month plus commission for each car she sells. The graph shows her salar based on how man cars she sells. What is her commission for each car she sells? Total Monthl Salar ($) number of cars sold $0 $00 $00 $ Clark Count School District Revised 02/06/20

30 amount of water amount of water amount of water amount of water Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set B 48. Tina fills up the bath tub to take a bath. She takes a nice long hot bath then empties the bathtub. Choose the graph that best represents the amount of water in the tub during this process. 49. The graph shows Lisa s walking speed on her treadmill. Approimatel how long did it take her to reach her maimum speed? time time minutes 2 minutes 0 minutes 60 minutes time time Clark Count School District Revised 02/06/20

31 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set C 2. Approimate the value of tenth to the nearest 8. Which point best represents the value of 7? Point A Point B Point C Point D 9. Solve A B C D 0. Catherine charges $0 per hour to babsit. Which graph shows how much she will earn for a given time worked? Total earned ($) Total earned ($) Total earned ($) Total earned ($) Hours worked Hours worked Hours worked Hours worked Clark Count School District Revised 02/06/20

32 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set C. For which equation is a solution? Choose the proportional graph that has a slope of The table below shows the number of shoes machine A has assembled. Time (h) Number of Shoes Assembled (s) 8 a.m. 0 0 a.m. 40 noon 80 2 p.m p.m p.m. 200 Machine B s performance can be modeled b s h. Which machine can produce more shoes per hour? Machine A Machine B Both machines can produce at least 40 pairs of shoes per hour. It cannot be determined from the information given Clark Count School District Revised 02/06/20

33 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set C. The graph shows the amount of mone Catherine had in an account over a 6 month period. Amount 4. Choose the scatter plot that is not a linear association. Months How much was in her account initiall and how much did she deposit each month? Initial amount: $0 Monthl deposit: $00 Initial amount: $0 Monthl deposit: $00 Initial amount: $00 Monthl deposit: $0 Initial amount: $00 Monthl deposit: $ Clark Count School District Revised 02/06/20

34 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set C. The scatter plot below represents data collected in an 8 th grade class. Students were asked to record their height and arm span in inches. Armspan (inches) In which scatterplot does the line best fit the data? Height (inches) Choose the statement that cannot be supported b the graph. One student ma have measured his/her arm span wrong. Height will generall be greater than arm span. There is a positive association between height and arm span. The shortest person did not have the shortest arm span Clark Count School District Revised 02/06/20

35 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set C 7. The femur is a large bone that connected from the hip to the knee. The equation h.9 f 28.7 models the height in inches (h) for a female given the length of her femur (f) in inches. 9. A total of 92 people attended the school pla. Of the 92 that attended, 8 were children and were female. Not all the females were adults; 2 of the females were children. Which two-wa frequenc table represents this data? Interpret the meaning to.9 in this linear model. For ever inch the length of the femur increases, height increases b.9 inches. For ever.9 inches the length of the femur increases, height increases b inch. For ever inch the length of the femur increases, height increases b 28.7 inches. If a femur measures.9 inches, height is 28.7 inches. 8. The two wa table shows the results of a surve about which of two new television programs people prefer. Program A Program B Total Women Men 7 22 Total What percentage of people preferred program A? 42% 28% 2% 7% Male Female Total Children 0 2 Adults 24 9 Total Male Female Total Children 2 8 Adults Total 9 92 Male Female Total Children Adults 6 Total 9 92 Male Female Total Children 2 8 Adults Total Clark Count School District Revised 02/06/20

36 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set C 40. Data from 00 flights were collected. The flights were categorized as domestic or international and late or not late. Late Not Late Total 42. Use the diagram below. A Domestic 60 7 International 20 2 Total B C What conclusion can be drawn from the table? International flights are less likel to be late than flights in general. International flights are more likel to be late than domestic flights. International flights are equall likel to be late as domestic flights. It cannot be determined from the information given. E D Choose the two statements must be true. I. The slope of AC is the same as the slope of CE. II. The length of AC is half the length of CE. III. ABC CDE IV. The area of CDE. ABC is half the area of I and III I and IV II and III II and IV 44. Find the -intercept of the line with equation 2 2. (0, ) (0, 4) (2, ) (6, 0) Clark Count School District Revised 02/06/20

37 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set C 4. Coach is buing trophies and jackets for his baseball team. The jackets cost $4 each. The trophies cost $7 each with an initial set up fee of $2. Let represent the number of plaers on the team and represent the total cost of jackets and trophies. Choose the function that best describes the total cost the coach will spend based on the number of plaers he has. = = = = The equation h =.2t + 6 models the growth of a plant under the sunlight. The total height of the plant in millimeters is represented b h and t is the number of hours the plant was in the sunlight. Interpret what the slope.2 represents in this model. The height of the plant started at.2 mm. Ever hour in the sunlight the plant grows.2 mm. The plant costs $.2. Ever.2 hours in the sunlight the plant will grow 6 mm. 46. The table below shows the charges for a tai cab fare. Miles driven (m) Total cost $.00 $0.0 $8.00 $2.0 $.00 Choose the equation that models this situation. C = m C = m C = 7.0m + C = 7.0m Clark Count School District Revised 02/06/20

38 Pre-Algebra Semester 2 Revised Multiple Choice Practice Questions Set C 48. The outdoor temperature changes throughout the da. Earl in the morning, temperature increases slowl. At a.m. the temperature rises sharpl. During the afternoon, the temperature stas the same for several hours. As night falls, the temperature decreases slightl. Choose the graph that best represents this situation. 49. Sara is riding a biccle at a stead speed. Choose the graph that most likel represents the distance she travels while riding her bike Clark Count School District Revised 02/06/20

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