* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Algebra 1
Survey
Document related concepts
Transcript
Algebra 1 Mid-Term Exam Review This is your mid-term exam review. The questions that you see here are the type of questions you will see next week on your mid-term exam. Feel free to use your book and help each other out, but remember that you won’t get to use anything on the mid-term next week. Follow the directions for each question and show all of your work on a separate sheet of paper. This exam review is due on the day of your exam and will count as a 15% of your exam grade! Good luck! 1. Simplify: 6 2 2. Simplify: 62 3. Simplify: 5 3 4. Mr. and Mrs. Phillips are going to build a new home with a foundation that is in the shape of a square. The house will cover 222 square yards. Find the length of the side of the house to the nearest tenth of a yard. 5. Simplify: 7. Simplify: 400 6 2 3 9 7 2 6. Simplify: 9 8. Simplify: 50 10 2 9. Simplify: 3 4 10 2 1 10. Simplify: 12x 8x 4 7 x 11. Simplify: 5x 3 7 x 12. Simplify: 5 x 2 2 x 3x 2 13. Solve for x: 3x 3 18 14. Solve for a: 15 15. Solve for h: 6h 7 17 16. Solve for p: 17 3 p 5 8 17. Solve for x: 17 x 3x 1 18. Solve for a: 7a 17 4a 1 19. Solve for c: 3c 5 2c 5 20. Solve for x: 2x 4 3x 2 21. Solve for y: 6 y 8 9 6 y 22. Solve for x: 6 2x 1 4x 8 6x 3 23. Solve for y: 4 y 3x 5 24. Solve for s: 2 4r s 25. Solve for x: 3 1 x 8 26. Solve for f: a 2 3 f 3 7 12 2 27. Solve for x: x 1 x 1 3 5 28. Solve for y: 3 16 2y y 2 29. Roger is 5 ft tall and casts a shadow that is 3.5 ft long. At the same time, the flagpole outside his school casts a shadow that is 14 ft long. Write and solve a proportion to find the height of the flagpole. 30. A tower casts a 450 ft shadow at the same time that a 4 ft child casts a 6 ft shadow. Write and solve a proportion to find the height of the tower. 31. 40 is what percent of 25? 32. 57 is what percent of 30? 33. 16 is 10% of what number? 34. 16% of what number is 94? 35. A sales representative earns a 2.5% commission on sales. Find the commission earned when the total sales are $80,700. 36. Joe earns $150 per week plus 12% commission on sales. Pete earns $200 per week plus 8% commission on sales. Last week, both had sales of $1500. Who earned more money? 37. Solve and graph on a number line: 3 5 2x 38. Solve and graph on a number line: 4x 3 24 39. Solve and graph on a number line: x 5 2 40. Solve for x: 2x 4x 6 41. Solve for x: 54 x 32 x 42. Solve for k: 2k 7 2k 14 43. How do you know if a relation is a function? 44. Is {(6,2), (-1,2), (-3,2), (-5,2)} a function? 45. Is {(-5,26), (5,0), (10,11), (-5,36)} a function? 46. Write a rule in function notation: Steven buys lettuce that costs $1.69/lb. 47. An amusement park charges a $6.00 parking fee plus $29.99 per person. Write a rule in function notation, and find the total cost for 4 people parking together to go to the amusement park. For #48-50, identify whether the correlation would be positive, negative, or no correlation. 48. The temperature in Houston and the number of cars sold in Boston. 49. The number of members in a family and the size of their grocery bill. 50. The number of times you sharpen your pencil and the length of your pencil. 51. Find the x and y-intercepts of 3x 5 y 30 . 52. Find the x and y-intercepts of 4 x 2 y 16 . 53. Draw a line with slope of 2 . 3 For #54-57, find the slope of the line with the given information. 54. the line contains the points (-2,3) and (5,6). 55. a horizontal line 56. a vertical line 57. the line contains the points (2,7) and (4,4) 58. The value of y varies directly with x, and y 6 when x 12 . Find y when x 27 . 59. Write the equation of the line in slope-intercept form: 6 x 3 y 12 60. Write the equation of the line in slope-intercept form: 4 x y 9 61. Graph y 12 x 2 . 62. Graph y 3 x 1 . 63. Graph y x 4 . For #64-65, write an equation of the line in point-slope form with the given slope and point that it passes through. 64. slope of 5, passes through (1,4) 65. slope of 2 , passes through (6,4) 3 For #66-67, write an equation in slope-intercept form with the given information. 66. slope of 1 , passes through (6,4) 2 67. passes through the points (-1,2) and (4, -23) For #68-70, tell whether the following lines are parallel, perpendicular, or neither. 68. y 56 x 8 ; y 56 x 4 69. x 6 y 15 ; y 6 x 8 70. y 9 3x 1 ; y 0 For #71-72, find the equation of the line in slope-intercept form. 71. parallel to y 12 x 4 and has a y-intercept of 6 72. perpendicular to y 12 x 4 and has a y-intercept of -3 73. Graph both the original equation and the perpendicular equation from #72. For #74-76, solve the systems and write your answer as a point! y x 3 74. y 2 x 12 4 x y 1 75. 2 x y 5 2 x y 3 76. x 3 y 12