Algebra 1 Nine Weeks Test Review Unit 1 Review Name: ________________________ Date: _________________________ Write an algebraic expression for each verbal expression. 1. 2. 3. 4. 56 increased by twice a number _________________________________ the product of x and 7 plus one half of y _____________________________ twice the difference of 4 and x __________________________________________ 8 less than a number squared ________________________________________ Convert. Be sure to show all work in the solution process. 5. How many inches are in 568 centimeters? (1 inch = 2.54 cm) 6. How many minutes are in 3 days? 7. If you are traveling 65 miles per hour, how many feet per second are you traveling? 8. How many ounces are in 6 tons? Simplify completely. 9. 3(4x –5) + 9x + 8 10. 4x – 2y+8x – 4y – 16x For each problem below, select the best answer and place your answer in the space provided. _______ 11. Erica wants to have an average of an 85 on her quizzes. If she took three quizzes and earned a 94, 75, and 82, what is the lowest score she has to earn on her fourth quiz? A. 88 B. 84 C. 89 D. 98 _______ 12. If -2x + 9 = -11, then what is -6x? A. 60 B. -60 C. -10 D. 10 _______ 13. What is the algebraic translation of: “four times the sum of eight and a number”? A. 4(8 + x) B. 4 + 8x C. (4 + x)8 D. 4*8 + x _______ 14. What is the algebraic translation of: “The square of the sum of a number and 11”? A. x2 + 11 B. (x + 11)2 C. x + 112 D. x + 11 15. The sides of a rectangle have a length x + 4 and width x – 3. What is the equation that describes the area of the rectangle in terms of x? 16. Find the perimeter of the triangle. 3x 2x 4x+ 6 17. a. Find the area of the rectangle. b. x+4 Find the perimeter of the rectangle. 5x – 2 Simplify. 18. 19. 20. 36 x 4 y 6 64 21. 2 3 57 3 2 72 22. 23. 3 27 7 3 12 5 6 3 24 150 Simplify. 24. (x2 – 3x + 7) + (2x2 – 5) 25. (4m3 – 6m2 + 11) – (2m2 + 4m -13) 26. 16p2 + 11p – (12p + 6 p2 - 5) 27. (33r2 + 12r ) + (16r – 18r2 + 7) 28. (-16m2n3 )(4mn5) 29. (3xy)(-8xy7) 30. (2m + 3) (3m – 1) 31. 2m3(3m2 + 5m -11) 32. (3x2 + 5x)(-2x + 11) 33. (4a – 1)2 34. How many term are in the expression 15x3 – 34x2 + 4x? 35. Denise wants to buy a new shirt that cost $45. She waited until the shirt was on sale for 25% off. How much did Denise pay for the shirt at the sale price? 36. 2. In the segment below, XZ 9 x 7 and YZ 3x 1 . Write an expression to represent the length of XY . Y X Z 36. XY = 37. In the segment below, AM 4 x 7 and MB 3x 5 . Write an expression to represent the length of AB . A M 37. AB B Unit 2 Review Solving Equations 1. 2(x – 3) + 5 = 3(x – 1) 2. 1 x 8 2 2 3. 6x + 7 = 8x – 13 Solve for the given variable. 4. 2 x 3 y 15, solve for y 5. P = 2L + 2W, solve for w 6. Solve for x: y 3x 7 ________7. If the slope of a line is -3 and the y-intercept is 8, which of the following equations could be used to represent the line? A. y = 8x – 3 B. y = –3x + 8 C. –3x + 8y = 24 D. –3x + 8y = 0 8. Find the slope, x-intercept, and y-intercept of the following equations a. -2x – 5y = 10 slope:__________ x-intercept: ____________ y-intercept:____________ b. y = ½ x + 7 slope:__________ x-intercept: ____________ y-intercept:____________ 9. Find the slope of the line that passes through the given pair of points. Show all your work. a. (4,5) and (5,5) b. (7,8) and (5,8) Write the equation of the line using the information in slope intercept form. 10. slope = -3, passes through (-4,6) 11. through (2,8) and (4,9) 12. Graph using the x-intercept and the y-intercept. 4x – 3y = -12 13. Graph using the slope and y-intercept y= 1 x5 2 14. April goes shopping every weekend of the year. She starts out with $200 and spends $25 every shopping trip. Identify the slope and the y-intercept. Then write an equation to model this situation. 15. John tutors students on the weekends to raise extra money. He charges an initial fee of $5 and an extra $2 per hour. Identify the slope and y-intercept. A) Write an equation to model this situation. _________________________________ B) Which graph could be used to model this situation? A B C Write the first six terms of each sequence with the given criteria. 16. The first term of the arithmetic sequence is 5 and common difference is 3.5. Write the explicit and recursive formula. Recursive: __________________ ____, ____, ____, ____, ____, ____ Explicit: ___________________ Using Point-Slope to get to Slope-Intercept Form: Write the equation of the line using the following information in slope-intercept form. 17. through (0,5) and (4,0) 18. through (2, 4) with slope 4 Arithmetic Sequence: Write the first six terms of each sequence with the given criteria. 19. The first term of the arithmetic sequence is -3 and common difference is 4. Write the explicit and recursive formula. Recursive: ___________________________ ____, ____, ____, ____, ____, ____ Explicit: ______________________________ 20. Find the 53rd term of the sequence: an = 3n - 11 Linear Equations Word Problems: 21. Meribeth likes to collect unusual rocks. She currently has 6 rocks in her collection but wants to add to it. She decides she would like to collect 4 more rocks each week. The equation y = 4x + 6 can be used to model the total amount of rocks she has collected. a. How many unusual rocks should Meribeth have at the end of 7 weeks? b. How many weeks would it take Meribeth to have 26 rocks? 22. Morgan’s grandma gave her $100 for Christmas. She decides that she will spend exactly 20 per week after that. Write an equation to represent the total amount of money Morgan has left after x weeks. Don’t forget to define your variables. 23. Madison wanted to rent a bike during her trip to the beach. She found out that the deposit was $7 and she would be charged $3 per hour until it is returned. Write an equation to model this situation. Don’t forget to define your variables. Solving Inequalities: 24. 6x – 3 ≤ 3x + 12 25. Graphing Inequalities 26. 2 x y 5 7 2x 5 3 27. y x 5 28. x 2 29. Given the inequality y < x – 5, which point is NOT a solution? A. ( 5, 10) B. (10, 0) C. (3, -3) D. (6, 0) Solve using Substitution and then find the sum of x and y : x 4y 1 y 3x 8 30. 31. 2 x 3 y 9 x y 4 Solve using Elimination and then find the sum of x and y : 3 x 5 y 11 32. x 3y 1 2 x 3 y 13 33. x 3y 2 Write a System of Equations: 3x 2 y 19 35. 5 x 4 y 17 2x y 5 34. 3x 2 y 4 Write a system of equations for the information. 36. Jumping Jacks charges $8 to play on the inflatables and $5 for the climbing wall. Josh paid $68 for a total of 10 trips to Jumping Jacks. How many times did he play on the inflatables and the climbing wall? 37. Mrs. Mock wanted to buy 80 new rulers. Manip-u-view and FlexiRuler are two different types of rulers. Manip-u-view cost $0.10 each and FlexiRuler cost $0.25 each. Mrs. Mock has $15.05 to spend. How many of each can she buy? Function Notation: Identify the domain and range of the given relation. Then tell whether the relation is a function. If the relation is a function, tell whether it is a one-to-one function. 38. (1, 1), (2, 2), (3, 3), (4, 4) 39. Domain:__________________ Domain:_________________ Range:__________________ Range:___________________ Function: Yes or No Function: Yes or No One to One: Yes or No One to One: Yes or No Given the functions below find the value of each of the following. f(x) = 2x3 – 3x2 + 4 h(x) = -3x + 9 41. f(-1) = _______ 42. h(3) = _______ 43. f(3) = _______ 44. x when g(x) = 6 45. g(3) = _______ 46. g(2) = _________ 47. Fill in the properties used in solving the equation: Equation 7 x 4 x 2 4 Properties Given Equation 7 x 4x 2 4 3x 2 4 3x 6 x 2 Unit 3 Review Solve by factoring: 48. x2 + 11x + 24 = 0 49. 3x2 – 13x = 10 Solve by using square roots: 50. x2 = 225 51. 3 + (x – 5)2 = 17 Solve by using the quadratic formula: 52. x2 + 2x = 9 53. 4x2 + x – 10 = 0 g(x)