Algebra II Final Exam REVIEW 2013 Name _______________________ 10 points – Completion 20 points - Accuracy The exam review will be graded on completion (10 points) and randomly selected problems answered correctly with accurate work shown (20 points) In order to earn full credit, you must show all work for each problem!! One point will be deducted for each problem not completed or without work. The entire exam review packet is due no later than: Thursday, May 16, 2013 for a maximum of 35 points out of 30 points. Friday, May 17, 2013 for a maximum of 35 points out of 30 points. Monday, May 20, 2013 for a maximum of 32 points out of 30 points Tuesday, May 21, 2013for a maximum of 31 points out of 30 points Wednesday, MAY 22, 2013 for a maximum of 30 points out of 30 points In my hand by 3:50 pm – not in the mailbox There will be no exceptions made!! The Final Exam will consist of material covered from Unit 5 (statistics); Unit 6 (Polynomials – Ch 5); Unit 7 (Rational Functions – Ch 8); Chapter 12 (sequence and series) and Chapter 7 (Exponential Functions) Algebra 2 Final Exam Review Name _______________________ DIRECTIONS: SHOW WORK TO RECEIVE FULL CREDIT – Box or Circle all final answers. Unit 6 (Polynomials – Ch 5) 1. Use synthetic substitution to find the value of f (x ) 5x 4 6x 2 1 , when x = -2 2. Complete the statement regarding the end behavior of the graph of f (x ) x 3 5 , as x , f ( x) ___ 3. Factor completely: x 3 8 4. Use synthetic division to find the quotient of 5x 3 4x 2 6x 2 x 3 5. Use long division to divide f(x) = 2x3 – 9x2 + 12x – 5 by (x – 1). 6. Find all of the possible rational zeros of f ( x) 4 x3 2 x 2 11x 12 c 7. If 2 is a zero, what is its factor? __________ 3 8. If (3 + 4i) is a zero, what is another zero? __________ hb g 1 x 3 x 2 x 6 9. Sketch the graph the function: y 12 b gb gb g y How many turning points? _____ x 10. Find all the zeros of the function using factoring: f (x ) x 11x x 11 3 2 11. Find all the REAL solutions of the function using factoring: f (x ) x 3 27 12. Write a polynomial function in standard form that has real coefficients, the given zeros, and a leading coefficient of 1. Zeros: 2, 4, -3i 13. Given the polynomial f(x) = x3 - 9x2 + 8x + 60, find ALL zeros given (x – 6) is a factor. 14. Find ALL the solutions of the function: f (x ) x 3 2x 2 x 4 Show the synthetic division and other work for full credit. Unit 7 (Rational Functions – Ch 8) Identify the vertical asymptote, horizontal asymptote, domain and range for each function below. y 2x 1 x 3 4 15. y x 16. Vertical asymptote________ Horizontal asymptote______ Domain___________ Range____________ Vertical asymptote______ Horizontal asymptote______ Domain__________ Range___________ Graph the rational functions given and identify the necessary information below. 17. f(x) 2x x4 y Vertical asymptote_____ Horizontal asymptote______ 18. f(x) 2 1 x 3 y Vertical asymptote_____ Horizontal asymptote______ Domain________ Range_________ x Domain________ Range_________ x 19. The variable z varies directly with y and inversely with x. When x = 4 and y = 28, z = 56, write an equation relating x, y, and z. 20. Wind chill factor (W) varies directly with temperature (T) and inversely with the wind velocity (v). If k is the constant of proportionality, write the formula that represents this relationship? x 2 3x 10 x 1 • 2 ? 2 x 4 x 6x 5 21. What is the product 22. What is the quotient (x + 6) ÷ 23. What is the sum of 24. 4 3x x 2 5x 6 ? x2 7x 8 x 3x 6x 2 ? 4x 12 x2 9 What is the difference of − x 3 x 3 6 2 4 ? x 3 x 25. What is the solution of the equation 26. What are all the solutions of the equation x2 8 ? 5 x4 Unit 5 (statistics) 27. The Survey of Study Habits and Attitudes (SSHA) is a psychological test that evaluates college students’ motivation, study habits, and attitudes toward school. A college gives the SSHA to a sample of 22 of its incoming first-year students. Their scores are: 153 102 108 127 137 127 114 137 152 165 140 165 154 129 178 210 101 148 112 135 128 114 Complete the following table of indicated values. Mean Median Standard Deviation Range 28. From a group of 40 people, a jury of 12 people is selected. In how many different ways can a jury of 12 people be selected? 29. In one Austrian province, a vehicular plate number consists of 4 letters and 3 numbers. (example: BACK_301) Using the fundamental principle of counting (one more time!), how many plate numbers are available? 30. A random survey was conducted to determine the cost of residential gas heat. Analysis of the survey results indicated a normal distribution with a mean monthly cost of gas of $125, and a standard deviation of $10. a. What percent of homes will have a monthly bill of more than $118? b. What percent homes will have a monthly bill between $118 and $130? c. Determine the percentile for a monthly bill of $140. 31. If the mean is 7 and the standard deviation is 4, what is the z-score of 5? 32. What is the area under the standard normal curve corresponding to Z < 1.6? 33. A study of weekly salaries at High Tech Manufacturing indicated that weekly salaries are normally distributed with mean = $725 and standard deviation = $45. What salary represents the 80th percentile? 34. The table below shows the New York Yankees’ payroll(in millions of dollars) from 1997 to 2004. Use your calculator to find the quadratic model that best fits the data. Years since 1997 0 1 2 3 4 5 6 7 Payroll 59 63 88 93 112 126 153 184 a) Determine the Quadratic Model for the data set above: (round to 2 decimals) b) Using the equation, what would you estimate the payroll to be this year, 2012? Chapter 12 (sequence and series) 35. Evaluate: 5 (3k 2 k) k 3 36. Select the arithmetic sequence. Then, identify the common difference: ______ a) 2, 5, 9, 14, 20 b) 1, 3, 6, 10, 15 c) −5, −2, 1, 4, 7 c) −3, 0, 4, 9, 15 37. Write the rule for the arithmetic sequence when a14 = -73 and d = -8 38. 1 Find the sum using the formula sum. 20 2 n 1 39. Using the formula Sn = 40. Write a rule for the nth term of the geometric sequence -2, 8, -32, 128, … 6 n 1 a1 3 3 3 , find the sum of 6 3 ... 2 4 8 1 r Chapter 7 (Exponential Functions) – This will be on your final exam but is not covered in this packet. You need to study your materials from class to review Ch 7 for the final!