Which boxplot represents the same information as the histogram? Test Scores Test Scores
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1 Frequency of Test Scores ALGEBRA I SEMESTER EXAMS SEMESTER 1. Mrs. Johnson created this histogram of her 3 rd period students test scores Test Scores Which boplot represents the same information as the histogram? (A) Test Scores Test Scores (C) (D) Test Scores Test Scores Page 1 of 65 Revised 0/8/013
2 Frequency ALGEBRA I SEMESTER EXAMS SEMESTER. This graph shows annual salaries (in thousands of dollars) for all workers in a certain city Salary The median salary is $80,500. Which value is the best approimation for the mean? (A) $66,500 $80,500 (C) $94, Page of 65 Revised 0/8/013
3 SEMESTER EXAMS SEMESTER For questions 3 5, use the following scenario. A survey was made of high-school-aged students owning cell phones with tet messaging. The survey asked how many tet messages each student sends and receives per day. Some results are shown in the table below. Number of tet messages sent/received per day among teens who tet Group Number Surveyed Mean Median Girls, years old Boys, years old Total A histogram of the girls responses (not shown) has a strong right skew. Which statement would support that observation? (A) The number of girls surveyed is greater than the mean number of tets sent by girls. The mean number of tets sent by girls is greater than the median number of tets sent by girls. (C) The mean number of tets sent by girls is greater than the mean number of tets sent by boys. (D) The median number of tets sent by girls is greater than the median number of tets sent by boys. 4. Which epression shows the mean number of tet messages for all girls and boys, years old? (A) (C) (D) It cannot be computed from the information given. 5. Which group s data has the larger interquartile range? (A) Boys Girls (C) Neither, they are equal. (D) It cannot be computed from the information given Page 3 of 65 Revised 0/8/013
4 SEMESTER EXAMS SEMESTER For questions 6 9, use the boplots of two data sets, P and Q, below. Set P Set Q Which data set has the larger median? (A) Set P Set Q (C) Neither, the medians are the same. 7. Which data set has the larger interquartile range? (A) Set P Set Q (C) Neither, the interquartile ranges are the same. 8. Which data set could be described as skewed left? (A) Set P only Set Q only (C) Both sets (D) Neither set 9. Which data set has values that are considered outliers? (A) Set P only Set Q only (C) Both sets (D) Neither set Page 4 of 65 Revised 0/8/013
5 SEMESTER EXAMS SEMESTER 10. A data set has 4 values: {1, 5, 6, 8}. The mean of the data set is 5. Which epression shows the computation of the standard deviation? (A) (C) (D) The distributions of two classes final eam scores are shown below. Mr. Smith Mrs. Jones Final Eam Scores Which statement about the bo-and-whisker plots is true? (A) 50% of the scores for Mr. Smith s class are between 65 and % of the scores for Mrs. Jones class are between 80 and 100. (C) The median scores for the two classes are the same. (D) The interquartile range of scores for Mr. Smith s class is greater than the interquartile range of the scores for Mrs. Jones class Page 5 of 65 Revised 0/8/013
6 SEMESTER EXAMS SEMESTER 1. Eamine the dotplots below from three sets of data Set A Set B Set C The mean of each set is 5. The standard deviations of the sets are 1.3,.0, and.9. Match each data set with its standard deviation. (A) Set A: 1.3 Set B:.0 Set C:.9 Set A:.0 Set B: 1.3 Set C:.9 (C) Set A:.0 Set B:.9 Set C: 1.3 (D) Set A:.9 Set B: 1.3 Set C: Page 6 of 65 Revised 0/8/013
7 SEMESTER EXAMS SEMESTER For questions 13 15, use the following scenario. A survey asked 100 students whether or not they like two sports: soccer and tennis. The results of the survey are shown in the table. Likes Tennis Likes Soccer Yes No Yes 1 18 No What is the relative frequency of students who like tennis, soccer, or both? (A) (C) 0.78 (D) What is the relative frequency of students who like tennis? (A) (C) 0.5 (D) What is the relative frequency of students who like both tennis and soccer? (A) (C) 0.60 (D) Page 7 of 65 Revised 0/8/013
8 Foot length (cm) ALGEBRA I SEMESTER EXAMS SEMESTER 16. The scatterplot below represents the forearm lengths and foot lengths of 10 people. Forearm length (cm) Based on a linear model of the data, which is the best prediction for the length of a person s foot if his/her forearm length is 1 centimeters? (A) 19 cm 0 cm (C) cm (D) 4 cm Page 8 of 65 Revised 0/8/013
9 SEMESTER EXAMS SEMESTER 17. The line of best fit for the scatterplot below is yˆ y Predict y when = 6. (A) (C) 11.3 (D) Page 9 of 65 Revised 0/8/013
10 SEMESTER EXAMS SEMESTER 18. Which equation best describes fits the data shown in the scatterplot? y (A) 3 y 5 1 y 3 (C) y 8 (D) y Page 10 of 65 Revised 0/8/013
11 residuals residuals ALGEBRA I SEMESTER EXAMS SEMESTER 19. Two residual plots are shown below. Plot I Plot II Which residual plot(s) would indicate a linear model is appropriate? (A) Plot I only Plot II only (C) Both Plot I and Plot II (D) Neither Plot I nor Plot II Page 11 of 65 Revised 0/8/013
12 SEMESTER EXAMS SEMESTER 0. The line of best fit for the scatterplot below is yˆ y What is the residual for the point (4, 10)? (A) (C) 8.5 (D) A scatterplot is made of a city s population over time. The equation of the line of best fit is pˆ 69t 150,000 where ˆp is the city s predicted population size and t is the number of years since 000. What is the meaning of the slope of this line? (A) In 000, the city s population was about 69 people. In 000, the city s population was about 150,000 people. (C) The city s population increases by about 69 people each year. (D) The city s population increases by about 150,000 people each year.. The equation yˆ , gives the predicted population ŷ of a city (in thousands) years after What is meaning of the y-intercept? (A) In 1975, the city s population was about 10 people. In 1975, the city s population was about 31,400 people. (C) The city s population decreases by about 10 people each year. (D) The city s population decreases by about 31,400 people each year Page 1 of 65 Revised 0/8/013
13 SEMESTER EXAMS SEMESTER 3. The equation P ˆ 9.50m 509 gives the predicted price ˆP of a particular style of television m months after the style first became available. What is the meaning of the P-intercept? (A) The original price of the television was about $9.50. The original price of the television was about $ (C) The price of the television decreases by about $9.50 each month. (D) The price of the television increases by about $ each month. 4. The data below comes from a scatterplot y Which best describes the linear relationship between and y? (A) weak or no correlation strong positive correlation (C) strong negative correlation For questions 5 7, evaluate the truth of each statement about the correlation coefficient r. 5. A value of r near zero indicates there is a weak linear relationship between and y. 6. A value of r = 0.5 indicates a weaker linear relationship between and y than a value of r = A value of r = 1 indicates that there is a cause-and-effect relationship between and y Page 13 of 65 Revised 0/8/013
14 SEMESTER EXAMS SEMESTER For questions 8 9, use the following scenario. A linear model describes the relationship between two variables, and y. The correlation coefficient of the linear fit is r = The slope of the line of best fit is negative. 9. The linear relationship between and y is weak. 30. Use the scatterplot below. 30 y A linear model is fit to the data. What is the approimate value of its correlation coefficient? (A) r = 0.8 r = 1.0 (C) r = 0.8 (D) r = Page 14 of 65 Revised 0/8/013
15 Frequenc y Frequency ALGEBRA I SEMESTER EXAMS SEMESTER 31. The table shows the amount of rainfall in Seattle during the month of December in the years Monthly Rainfall (inches) The histogram shows the distribution of rainfall in Seattle during the month of July in the same years, using intervals of 0.5 inches. Year December July December Rainfall (inches) (a) Create a histogram on the grid above that shows the distribution of rainfall in December using intervals of 1.0 inch. (b) Describe the shapes of the distributions for July and December. (c) How does the mean rainfall for July compare to the median rainfall? Eplain. (d) Compare the median rainfalls for July and December over the period (e) Describe how to compute the standard deviation of the December rainfalls. (You do not have to actually compute it.) (f) Which month s rainfall, July or December, has the greater standard deviation? Eplain. (g) One of the rainfall amounts for July was recorded at.4 inches. In actuality, it was only 1.4 inches. Eplain how this would affect the mean and median of July rainfall Page 15 of 65 Revised 0/8/013
16 Rainfall (inches) ALGEBRA I SEMESTER EXAMS SEMESTER Question 31 continued. (h) On the grid below, create a scatterplot showing December monthly rainfall over the period from December Year (i) Describe the relationship between December rainfall and year Page 16 of 65 Revised 0/8/013
17 SEMESTER EXAMS SEMESTER 3. Students surveyed teachers at a school and asked, How much did you spend on your last haircut? The results of the survey, including the teachers gender, are given in the table at right (a) Construct a display that allows you to compare, by gender, the amount teachers spent on their last haircut. (b) Compare and contrast the distributions of amounts spent between male and female teachers. Gender Amount Spent ($) F 10 F 10 F 15 F 15 F 15 F 15 F 15 F 0 F 0 F 0 F 5 F 5 F 5 F 30 F 30 F 30 F 35 F 35 F 40 F 45 F 50 F 70 F 85 F 100 M 0 M 0 M 10 M 10 M 10 M 15 M 15 M 15 M 15 M 15 M 0 M 0 M 0 M 0 M 5 M Page 17 of 65 Revised 0/8/013
18 SEMESTER EXAMS SEMESTER 33. A high school principal randomly surveyed students about a change in the dress code. The results are shown in the table. Favors the change Class Freshmen Sophomores Juniors Yes No (a) What percentage of all respondents favors the policy change? (b) Which class has the highest favorable percentage? Which class has the lowest favorable percentage? (c) Is there a relationship between class and favoring the dress code change? Eplain. 34. Which is equivalent to 3 18 y where > 0 and y > 0? (A) 9y y 3y y (C) 3 y y (D) 9 y y 35. Which is equivalent to ? (A) (C) (D) Page 18 of 65 Revised 0/8/013
19 SEMESTER EXAMS SEMESTER 36. Which is equivalent to 6 8? (A) (C) 1 (D) Which is equivalent to 7 36? (A) (C) 3 (D) Which is equivalent to 4? (A) (C) 6 (D) Page 19 of 65 Revised 0/8/013
20 SEMESTER EXAMS SEMESTER 39. Which is equivalent to 3 5 y y? (A) (C) (D) 3 y 4 6 y y 4 y y y 40. Which is equivalent to 10 3? (A) (C) 10 (D) A class of students was told to compute the area of the rectangle below The class came up with three different values for the area: How many of those values correctly represent the area of the rectangle? (A) 0 1 (C) (D) Page 0 of 65 Revised 0/8/013
21 SEMESTER EXAMS SEMESTER 4. The irrational numbers are closed under multiplication. For questions 43 44, classify each number as rational or irrational (A) rational irrational (A) rational irrational 45. Answer each part. (a) What is an irrational number? (b) Eplain why 3 is an irrational number. 46. In each part, provide an eample of the statement. (a) The sum of two rational numbers is rational. (b) The product of a rational number and an irrational number is irrational. (c) The product of two irrational numbers can be rational. 47. Answer each part. (a) Write 4 as the product of a rational and an irrational number. (b) Give an eample where the product of two irrational numbers is a rational number. (c) Eplain why the sum of a rational number and an irrational number must be irrational Page 1 of 65 Revised 0/8/013
22 SEMESTER EXAMS SEMESTER 48. Which epression is equivalent to c b yc yb? (A) b y c c y b (C) y b c 49. Which is equivalent to 4 4 9y (A) 3y (C) 3y 3y 3y 3y 3y For questions 50 5, use the epression 4 4 y. 50. y y is equivalent to the given epression. 51. y y y is equivalent to the given epression y y is equivalent to the given epression Page of 65 Revised 0/8/013
23 SEMESTER EXAMS SEMESTER For questions 53 54, use the equation p. 53. p 54. p 55. Let y 3 and y 6. What is the value of y? (A) 9 3 (C) 9 (D) Which of these is NOT a factor of (A) 6 (C) + 3 (D) ? Page 3 of 65 Revised 0/8/013
24 SEMESTER EXAMS SEMESTER For questions 57 59, consider the solutions to the equation has the same solutions as the given equation has the same solutions as the given equation has the same solutions as the given equation. 60. The epression (A) 7 1 (C) 1 (D) 11 4 b 3 is factorable into two binomials. Which could NOT equal b? 61. Given (A) 7 (C) 14 (D) c q, where c and q are integers, what is the value of c? Page 4 of 65 Revised 0/8/013
25 SEMESTER EXAMS SEMESTER 6. Which quadratic equation has solutions of = a and = b? (A) (C) (D) ab 0 b a ab 0 b a ab 0 b a ab If 7 is a factor of (A) 1 7 (C) 7 (D) Factor 5 4. (A) k, what is the value of k? 5 (C) The epression is not factorable with real coefficients. 65. Factor (A) (C) The epression is not factorable with real coefficients. 66. Which is a factor of (A) 5 5 (C) 4 (D) ? Page 5 of 65 Revised 0/8/013
26 SEMESTER EXAMS SEMESTER 67. Which equation has roots of 4 and 6? (A) (C) (D) Which epression is equivalent to 3 40? (A) (C) 5 8 (D) Which epression is equivalent to (A) (C) (D) ? 70. What value of c makes the epression y 9y c a perfect trinomial square? (A) 9 (C) 81 (D) Page 6 of 65 Revised 0/8/013
27 SEMESTER EXAMS SEMESTER 71. What epression must the center cell of the table contain so that the sums of each row, each column, and each diagonal are equivalent? (A) (C) Which is equivalent to 3 y y? (A) (C) (D) 3 3 y 6y 3 3 y y 3 3 y 6 y y 73. Under what operations is the system of polynomials NOT closed? (A) addition subtraction (C) multiplication (D) division 74. Which epression is equivalent to ? (A) (C) (D) Page 7 of 65 Revised 0/8/013
28 SEMESTER EXAMS SEMESTER 75. Subtract: 9y 5y 6 3y y 4 (A) (C) (D) 6y 4y 6y 4y 10 6y 6y 6y 6y Epand the epression 3 7. (A) (C) (D) For questions 77 79, answer each with respect to the system of polynomials. 77. The system of polynomials is closed under subtraction. 78. The system of polynomials is closed under division. 79. The system of polynomials is closed under multiplication Page 8 of 65 Revised 0/8/013
29 SEMESTER EXAMS SEMESTER The distance traveled by a dropped object (ignoring air resistance) equals gt, where g is the acceleration of the object due to gravity and t is the time since it was dropped. If acceleration due to gravity is about 10 m/s, how much time does it take an object to fall 80 meters? (A) about 3 seconds about 4 seconds (C) about 5.5 seconds (D) about 9 seconds 81. The area of the triangle below is 4 square units. What is the height of the triangle? (A) 6 units 1 units (C) (D) 1 units 4 units 8. Solve the equation u P h for u, where all variables are positive real numbers. (A) u h P u h P (C) u h P (D) u h P Page 9 of 65 Revised 0/8/013
30 SEMESTER EXAMS SEMESTER For questions 83 84, use the scenario below. A rectangular playground is built such that its length is twice its width. w = w 83. The area of the playground can be epressed as w. 84. The perimeter of the playground can be epressed as 4w The quadratic equation is rewritten as p q. What is the value of q? (A) (C) What number should be added to both sides of the equation to complete the square in 8 17? (A) 4 16 (C) 9 (D) Page 30 of 65 Revised 0/8/013
31 SEMESTER EXAMS SEMESTER 87. If p 5 and q 16, which of these CANNOT equal p + q? (A) 1 9 (C) What value(s) of make the equation m n 0 true? (m and n do not equal zero.) (A) m and n m and n (C) mn (D) 0 For questions 86 87, the quadratic equation f 3 c 0 has eactly one real solution. 89. f can be written as a difference of squares. 90. c Page 31 of 65 Revised 0/8/013
32 SEMESTER EXAMS SEMESTER 91. Solve the equation for : a h k p (A) p h k a p h k a (C) h p a k (D) h p k a 9. Solve the quadratic (A) = or = = (C) = 1 or = or = 8 (D) = 0 or = When (A) p + p (C) 4 p (D) p 4 p p 0, = is a solution. Which is a factor of 4 p p? Page 3 of 65 Revised 0/8/013
33 SEMESTER EXAMS SEMESTER 94. The equation a has no real solutions. What must be true? (A) a < 0 a = 0 (C) a > What is the solution set of the equation 4 t 3 1 8? (A) 1 1 1, 4 3 1,5 4 4 (C) 3 3, 3 3 (D) 3 5, How many real solutions does the equation 4 0 have? (A) 0 1 (C) 97. How many real solutions does the equation (A) 0 1 (C) 3y 0 have? Page 33 of 65 Revised 0/8/013
34 SEMESTER EXAMS SEMESTER 98. What is the solution set of 4 5 9? (A) 1, 9 1, (C) , 4 4 (D) There are no real solutions. 99. The graph of y 3 6 has how many -intercepts? (A) 0 1 (C) (D) Which shows the correct use of the quadratic formula to find the solutions of 8 1? (A) (C) (D) Page 34 of 65 Revised 0/8/013
35 SEMESTER EXAMS SEMESTER 101. What is the solution set for the equation ? (A) 4, 7 7, 4 (C) 11, 3 (D) 3, What are the solutions of 3 6? (A) (C) (D) What is the solution set of the equation ? (A) (C) (D) , , Page 35 of 65 Revised 0/8/013
36 SEMESTER EXAMS SEMESTER 104. Mark and Sofia are looking at this pattern of dots. Mark says the number of dots in figure number n is equal to n 1. Sofia says the number of dots in figure number n is equal to n n 1 n 1. (a) Using the dot patterns, eplain why each student is correct. (b) Show algebraically that Mark s and Sofia s epressions are equivalent A quadratic epression has two factors. One factor is 3. In each part below, find another factor of the quadratic, if possible. If the situation described is not possible, eplain why. (a) The quadratic has no real zeros. (b) The quadratic has only one real zero. (c) The quadratic has two distinct real zeros Answer each part. (a) Define polynomial and give two eamples. (b) Give an eample where the sum of two binomials is a trinomial. (c) When two polynomials are multiplied, the result must be a polynomial. Eplain why this is true Given a b c What are the values of a, b, and c? Page 36 of 65 Revised 0/8/013
37 SEMESTER EXAMS SEMESTER 108. Given f 3, g, and 3 h 3 4, find: (a) f (b) f (c) f g h g 109. One way of epressing a quadratic function is f a h k. f a b c. A second way is (a) Find b in terms of a, h, and k. (b) Find c in terms of a, h, and k Use the figure below. h b The length of the triangle s base b is twice its height h. (a) What are the approimate lengths of the base and height when the triangle s area is 5 m? (b) A similar triangle has a height whose measure (in feet) is a positive integer. What could its area be? 3 s 10s 111. The braking distance d, in feet, for a car can be modeled by d. where s is the speed 40 of the car in miles per hour. What is the fastest speed that a car can be moving so that braking distance does not eceed 150 feet? Show your work. 11. Find all solutions to the equation Show your work Page 37 of 65 Revised 0/8/013
38 SEMESTER EXAMS SEMESTER 113. Solve each quadratic equation for. (a) (b) (c) The figure below shows a proposed sand pit, an area in a park that will be filled with sand. feet 3 feet feet The sand pit is to be a large rectangular area twice as long as it is wide, plus a smaller rectangular area 3 feet long and as wide as the large area. The two areas share a common side. (a) Write an epression for the total perimeter of the sand pit as a function of. (b) Write an epression for the total area of the sand pit as a function of. (c) The sand in the pit is to be 3 inches deep throughout. The park has 40 cubic feet of sand available. What will be the approimate dimensions of the sand pit? (d) The pit is to be bordered by a chain link fence. How much fencing is needed? 115. Eplain why the relation y = is a function even though = and = both produce y = A farmer can grow about 10,000 bushels of soybeans on a plot of land 1 kilometer by 1 kilometer. (a) Write a function that shows how many bushels of soybeans the farmer can grow on a plot of land kilometers by kilometers. (b) The price per bushel is p dollars per bushel. Write a function that shows how much money can be earned from a plot of land kilometers by kilometers. (c) Last year, a farmer sold $960,000 of soybeans at $15/bushel. What would be the dimensions of a square field that produced this sale of soybeans? Page 38 of 65 Revised 0/8/013
39 SEMESTER EXAMS SEMESTER 117. Define and sketch the three quadratic functions that have the following characteristics. (a) f has an ais of symmetry at = and no -intercepts. (b) g has a y-intercept at 3 and opens downward. (c) h has a zero at = and a minimum value of A parabola is defined as f a 3 10, where a is a positive real number. As a increases, what happens to the y-coordinate of the parabola s verte? (A) it decreases it increases (C) it does not change 119. A parabola is defined as f a 3 10, where a is a positive real number. As a increases, what happens to the y-coordinate of the parabola s y-intercept? (A) it decreases it increases (C) it does not change 10. A quadratic function is defined as y 4 7. Which statement is true? (A) The parabola has a maimum value of 7. The parabola has a minimum value of 7. (C) The parabola has a maimum value of 4. (D) The parabola has a minimum value of Page 39 of 65 Revised 0/8/013
40 SEMESTER EXAMS SEMESTER 11. Solve the system of equations. y y 5 (A) ( 4, 6) (0, 5) 4 6 (C) ( 5, 5) and ( 1, 3) (D) ( 5, 5) For questions 1 13, use the table below f() g() f() = g() at (0, 7). 13. f() = g() somewhere on the interval 3 < <. 14. The parabola y 9 and the line y = 8 intersect at two points. Which equation would be useful to find these points? (A) (C) (D) Page 40 of 65 Revised 0/8/013
41 SEMESTER EXAMS SEMESTER 15. Which value of is a solution to the equation ? 5 (A) (C).50 (D) Which quadratic function s graph is symmetric about the line = 3? (A) (C) (D) y 6 y 3 7 y 3 5 y Page 41 of 65 Revised 0/8/013
42 SEMESTER EXAMS SEMESTER In questions 17 19, use the graph below. The graph shows the height h above the ground (in meters) of a thrown ball as a function of time (in seconds). h t 17. The ball hits the ground 3 seconds after it is thrown. 18. Height begins decreasing as soon as the ball is thrown (t = 0). 19. The domain of the function that describes the height of the ball is all real numbers Page 4 of 65 Revised 0/8/013
43 SEMESTER EXAMS SEMESTER 130. A scientist drops an object from the top of and 80-foot building. The scientist uses a stopwatch to measure the time between when it was dropped and when it hits the ground. The height of the object above ground as a function of time is given by h t 80 16t. Which is the domain of this function? (A) t can be any real number. t can be any positive real number. (C) t can be any real number between 0 and 80, inclusive. (D) t can be any real number between 0 and 5, inclusive What are the domain and range of the function y 6 8 shown in the graph below? (A) Domain: all real numbers Range: y 1 Domain: all real numbers Range: all real numbers (C) Domain: 4 Range: y 1 (D) Domain: 4 Range: all real numbers Page 43 of 65 Revised 0/8/013
44 SEMESTER EXAMS SEMESTER 13. The table below is of a quadratic function, g, where is measured in seconds and g is measured in meters g What is the approimate rate of change over the interval 0 4? (A).8 m/s 8.7 m/s (C) 6.3 m/s (D) 5.7 m/s 133. Which graph represents the piecewise function? f 3, 1 3, (A) (C) (D) Page 44 of 65 Revised 0/8/013
45 SEMESTER EXAMS SEMESTER 134. Which of the following is the graph of y 4 5? (A) (C) (D) Page 45 of 65 Revised 0/8/013
46 SEMESTER EXAMS SEMESTER 135. A quadratic function is given by Which of these could be the graph of y h? h a b c, where a and c are negative real numbers. (A) y y (C) y (D) y Page 46 of 65 Revised 0/8/013
47 SEMESTER EXAMS SEMESTER 136. Which is the graph of f 3? f() f() (A) (C) f() (D) f() Page 47 of 65 Revised 0/8/013
48 SEMESTER EXAMS SEMESTER 137. Use the graph. y k = 3 k = k = 1 Which equation defines this set of parabolas? (A) y k 1 y 1 k 1 (C) y k Page 48 of 65 Revised 0/8/013
49 SEMESTER EXAMS SEMESTER 138. Use the graph. Which equation is represented the following graph? (A) (C) (D) y y y y A piecewise function is defined as this function? f, for 0. Which is another way of defining, for 0 (A) f f (C) f (D) f Page 49 of 65 Revised 0/8/013
50 SEMESTER EXAMS SEMESTER 140. The postage for a letter is $0.45 for letter weights up to and including one ounce. For each additional ounce, or portion of an ounce, another $0.0 is charged. Which graph represents the postage of a letter weighing ounces? (A) cost ($) cost ($) weight (oz.) weight (oz.) (C) cost ($) (D) cost ($) weight (oz.) weight (oz.) Page 50 of 65 Revised 0/8/013
51 SEMESTER EXAMS SEMESTER 141. Tai fare in Las Vegas is $3.30 plus $0.35 for every 1 7 of a mile or fraction thereof. Which graph shows the cost of a Las Vegas tai ride of miles? (A) cost ($) cost ($) distance (miles) distance (miles) (C) cost ($) (D) cost ($) distance (miles) distance (miles) Page 51 of 65 Revised 0/8/013
52 SEMESTER EXAMS SEMESTER 14. Use the graph. y What is the equation of the function? (A) y y (C) y (D) y 1 For questions , consider the graph of y The graph opens up The ais of symmetry is at Page 5 of 65 Revised 0/8/013
53 SEMESTER EXAMS SEMESTER 145. What is the verte of the parabola in the given equation? y (A), 41, 7 (C), 55 (D) 6, Where is the ais of symmetry in the quadratic f 3 9 5? (A) = 4 = (C) = 6 (D) = Page 53 of 65 Revised 0/8/013
54 SEMESTER EXAMS SEMESTER 147. Use the graph below. y (, 3) Which equation could define the given parabola, where a is a positive real number? (A) (C) (D) f a f a f a f a Page 54 of 65 Revised 0/8/013
55 SEMESTER EXAMS SEMESTER In questions , use the diagram and scenario below. h A cannonball is shot from the top of an ocean cliff as shown. The height (in meters) of the cannonball above the water is given by h t 5t 15t 8, where t is the number of seconds after the shot The cannon is 8 meters above the water The cannonball reaches its maimum height at 1.5 seconds after it is shot The cannonball hits the water 8 seconds after it is shot Page 55 of 65 Revised 0/8/013
56 SEMESTER EXAMS SEMESTER In questions , consider a quadratic y y-intercept at (0, c). f that has -intercepts at (r, 0) and (s, 0), and a 151. The function y f has an ais of symmetry at r s. 15. The function y f has -intercepts at (r +, 0) and (s +, 0) The function y f has a y-intercept at (0, c ) If y f opens upward, then y f opens downward Page 56 of 65 Revised 0/8/013
57 SEMESTER EXAMS SEMESTER 155. Look at the graph of the quadratic f below. f The graph of What is the value of b? (A) 6 (C) 1 (D) 14 g 3 b 4 has the same -intercepts Page 57 of 65 Revised 0/8/013
58 SEMESTER EXAMS SEMESTER 156. The table below is of the quadratic f f A second quadratic is defined as g 6 5. Which is true about the two functions minimum values? (A) f has a smaller minimum value. g has a smaller minimum value. (C) The minimum values of f and g are equal. (D) Which function has the smaller minimum cannot be determined from the information given A company produces toy trains. The cost C of producing t trains is given by the equation C = t. Which shows the number of trains that can be produced for a given cost? (A) t C t C (C) t C 15 (D) t 1 0 C Page 58 of 65 Revised 0/8/013
59 SEMESTER EXAMS SEMESTER 158. A function f takes values of and applies the following: Step 1) divide by 5 Step ) subtract 3 from the result in Step 1 Which of these describes the inverse function of f? (A) Step 1) multiply by 5 Step ) add 3 to the result in Step 1 Step 1) subtract 3 from Step ) divide the result in Step 1 by 5 (C) Step 1) add 3 to Step ) multiply the result in Step 1 by 5 (D) Step 1) divide by 1 5 Step ) subtract 3 from the result in Step The function f 3 does not have an inverse unless the domain is restricted. Which restricted domain will allow f to have an inverse? (A) 4 1 (C) 0 (D) Page 59 of 65 Revised 0/8/013
60 SEMESTER EXAMS SEMESTER 160. Which of the functions shown does not have an inverse function? (A) y y (C) y Page 60 of 65 Revised 0/8/013
61 SEMESTER EXAMS SEMESTER For questions , use the graph below. y (6.47, 88.77) y = + 5 y = 161. There are values of < 0 where There are values of > 7 where Page 61 of 65 Revised 0/8/013
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