Name: Algebra 2 Final Exam Review Topics on Exam: 1. Ch. 5 Polynomial Functions: #1 – 10 a. Synthetic Division b. Finding zeroes c. Factoring 2. Ch. 6 Radicals and Functions: #27 – 32 a. Simplifying radicals – factor tree b. Inverse functions: f-1 (x) c. Composite functions: f og(x) d. Parent functions and transformations; h and k i. Iphone family functions e. Solving radical equations Solving Rational Equations: #17 – 23 3. Ch. 8 Simplifying and a. Variations – inverse, direct, and joint b. Graphing rational equations – “boomerangs” and finding asymptotes c. Multiplying and dividing – keep change flip; factor each part and cancel d. Adding and subtracting – LCD e. Solving – find LCD first, then cross out the denominator to solve 4. Sequences and Series: #24 – 26 a. Rule versus sum formulas b. Arithmetic (linear) versus geometric (infinite) 5. Statistics: #11 – 15 a. Standard deviation and z-score b. Normal distribution curve and the percentages c. Permutation and Combination d. Regression – line or curve of best fit 6. Exponential and Logarithmic Functions: #33 – 40 a. Graphing; asymptotes b. Domain and range c. Solving exponential equations d. Solving logarithmic equations e. Expanding and condensing logs Practice Questions: Please solve the following problems. Show your work to receive credit. CIRCLE your answer. 1. Given roots of 3, 0, and –2, write a polynomial function. 2. Divide using synthetic 2a 4 5a 3 8a 3 division . a 3 3. Find P(2) using synthetic division when P(x) = 3x3 – 2x2 – x + 4. 4. Solve 4x2 –13x = 12 5. Solve (y – 8)2 + 7 = 61. 6. Find the roots of n2 – 8n + 14 = 0 7. Find all of the zeros of g(x) = x3 – 6x2 + 10x – 8 given that 4 is a zero. 8. Find all of the zeros of g(x) = x3 + 4x2 – 11x – 30 . 9. Is x + 1 a factor of x5 + x4 + x3 + x2 + x + 1? (Hint: use synthetic division; what should the remainder equal?) 10. Factor 8x3 – 125. 11. At one college, SAT scores for incoming students are normally distributed with a mean of 1200 and a standard deviation of 85. Kyle scored a 1290 on his SATs. At that same college, ACT scores are normally distributed with a mean of 26 and a standard deviation of 2.5. Janet scored a 28 on her ACTs. Who has the better chance of getting into the school? 13. Using the same problem from #12, what is the percentage of human pregnancies that last more than 280 days? 12. The length of human pregnancies varies according to a normal distribution with a mean of 266 and a standard deviation of 16 days. Draw and label all the percentages and each standard deviation line of the normal curve. 15. Decide if the situation is a permutation or combination, then solve accordingly. 16. Decide if the situation is a permutation or combination, then solve accordingly. A school newspaper has an editorin-chief and an assistant. The staff of the newspaper has 12 students. In how many ways can students be chosen for these two positions? A school newspaper committee has 12 students. The sponsor needs to choose 2 students to go to a workshop. In how many ways can two students be chosen? 14. Using the same problem from #12, if the survey asked 900 people, how many pregnancies lasted between 250 and 266 days? 16. If y varies directly with x and y = 16 when x = 20, a) find k b) find y when x = 15. 3x 2 1 3x 18. If w is inversely proportional to the square of t, 19. Simplify x 2 4 9 x 2 7 x . and w = 1 when t = 6, find w when t = 2. 20. Simplify 23. Solve x2 y2 y5 . yx y8 5 2m 19 . 6 2m 3 6 21. Simplify y 8 . 2 y 16 y 8 24. Evaluate, no calculator. 22. Simplify 3a 2 4 . a b 2 a 2b 25. Sequence: 5, 15, 45… 6 Use the formula! (3n 6) . n 1 a) Write a rule for the sequence. b) Find the 6th term. c) Find the sum of the first 7 terms (no calculator, use the formula). d) Explain why there is no sum if this is infinite. 26. Write a rule and then find the 20th term of the sequence 3, 10, 17, … 27. Simplify 64 5 6 28. Simplify 4 48x 5 y 8 z 3 3 2 y 5 23 y . 31. Find the inverse f -1(x) when f(x) = -7x + 4. 29. Solve ( x 6) 8 . 30. Solve 32. f(x) = x – 7 and g(x) = 3x2 + 1 33. Solve e5x+2 = ex. 34. Solve 2 x 3 36. Evaluate ln 3.12 to the nearest thousandth. 37. Evaluate log5 123 to the nearest thousandth. 39. Condense log2 5 + 8log2 a - 3log2 b. 40. Solve log8 x + log8 (x + 2) = log8 3 3 1 . 16 a) Find g(f(x)). b) Find f(g(x)). 35. Solve 3x – 5 = 7. (Keep exact answer.) 38. Expand log3 7x . y5 Graph and label the following. Think about h and k when necessary. Highlight asymptotes first. 41. y x 2 3 Domain: Range: 44. y 2 x 1 Domain: Range: Asymptote: 2 1 x 4 Domain: Range: H.A.: V.A. 47. y 4 x 1 2x 6 Domain: Range: H.A.: V.A. 42. y . 45. y log( x 3) 2 Domain: Range: Asymptote: 48. y 3x 1 2 Domain: Range: Asymptote: 1 3 x 2 Domain: Range: H.A.: V.A. 43. y . 46. y x 1 4 Domain: Range: 49. y log( x 4) Domain: Range: Asymptote: .