Score: ___________ MATH 084: Algebra I TEST 1: Review Name: _____________________________________ Instructor:________________ Instructions: Show all necessary work in the solution space provided. Write your final answer in the answer space corresponding to the question. Do not use a calculator to approximate answers unless asked to. QUESTION & W ORKING SPACE 1. Simplify 9 11 11 13 Simplify 7 1 8 12 Simplify 3 1 5 4 12 8 Simplify 3 1 5 4 12 8 Simplify 5 3 17 10 Simplify 2 2 15 5 2. 3. 4. 5. 6. Date: ___________ ANSWER page 2 7. Simplify 5 10 3 11 Simplify 2 4 1 5 5 2 Simplify 1 5 3 3 6 4 10. Simplify 4 x 3 x 1 11. Simplify 4 x (3 x) 1 12. Simplify 11x 5 (4 x 5) 13. Simplify 2 5d 1 9 8. 9. page 3 14. Simplify 3 2 4d 1 2 15. Simplify 34 y 3 5 y 9 16. Simplify 3 1 4 6 17. Simplify 6 4 2 8 6 18. Solve for a : F ma Solve for : z 19. x page 4 20. Solve for d : W F d Solve for d: r 21. 180 d 7 x 4 10 22. Solve for x: 23. Solve for n: n 7 4n 10 24. Solve for p: 3 p 5 4 p 7 2 25. Solve for x: 3 7 x 9 page 5 k 6 23 k 1 26. Solve for k: 1 2 27. Solve for y: 0.12 y 4 0.4 y 5 5 28. Solve for x: 5 x 1 6 5x 2 29. Solve the inequality and graph the solution on the number line: 8x 12 8 10x page 6 30. Solve the inequality and graph the solution on the number line: 31. Solve the inequality and graph the solution on the number line: 32. When the product of 7 and a number is increased by 3, the result is –18. Find the number. 33. Marcia’s brownie pan is full of brownies to sell at a benefit. The pan is 13 by 9 inches. If she cuts the brownies into squares of 1 inch by one inch (they’re very rich brownies), and sells them for $1.25 a piece, how much money will come in? 1 5m 6 3m 9 21 10 4n 8 24 page 7 Unit 1 Test Review Answers: 238 95 1 143 143 x z 19. 19 2. 24 20. d 31 7 1 3. 24 24 21. d 22. x2 23. n 1 24. p 25. x 21 26. k 22 27. y 13 1. 1 4. 24 5. 3 34 6. 1 3 7. 8. 4 5 9. 7 8 50 17 1 33 33 3x 4 11. 5x 4 12. 7x 13. 10d 7 15. 7 y 54 3 17. 20 18. a r 11 7 29. x 10 30. m 31. 8d 1 16. 180 28. no solution 10. 14. W F 0 -10 9 n8 2 0 32. -3/4 7n 3 18 , n 3 33. (13 9) $1.25 $146.25 0 F m 3 4 9/2 8 MATH 084: Algebra I TEST 2 Review Name: _____________________________________ Instructor:________________ Instructions: Date: ___________ Show all necessary work in the solution space provided. Write your final answer in the answer space corresponding to the question. Do not use a calculator to approximate answers unless asked to. QUESTION & W ORKING SPACE 1. Graph 3x y 1 2. Graph 5x 2 y 3 3. Graph y 5.5 ANSWER 4. Graph x 5.5 Graph y 5. 3 x 1 4 6. Graph 5 x 3 y 15 7. Find the slope of the line through the points (-32, - 14) and ( -8, -35) 8. Find the slope of the line: 11x + 13y = -19 9. Write the equation for the line with a y-intercept (0, -14) and a slope of 10. Write the equation for the line through (5, 18) with a slope of 11. Write the equation for the line through (-10, 6) with a slope of - 4. 3 10 . 7 5 . 12. Write the equation for the line through the points (6, 12) and (8, 5). 13. Write the equation for the line through the points ( 8, 8) and (10, 10) 14. Write the equation for the line through the points ( -5, -10) and (-10, -4) 15. Write the equation for the line with y-intercept (0,9) and x-intercept (-6,0). 16. Write the equation for the line through the points ( 8, -3) and (8, 1). Unit 2 Test Review Answers: 1. 4. 7. m 8. 11 m 13 7 8 9. y 7 x 14 5 2. 5. 3 33 x 10 2 10. y 11. y 4 x 34 12. y 13. yx 14. y 6 x 16 5 15. y 3 x9 2 7 x 33 2 16. Graph the points and see this is a vertical line with equation: x 8 . 3. 6. Score: ___________ MATH 084: Algebra I TEST 3: Review Name: _____________________________________ Instructor:________________ Instructions: Show all necessary work in the solution space provided. Write your final answer in the answer space corresponding to the question. Do not use a calculator to approximate answers unless asked to. QUESTION & W ORKING SPACE 1. Date: ___________ Graph the inequality 7 x 3 y 21 2. Graph the inequality y 2 x5 5 3. Solve the system by graphing: x 3 y 10 x y 2 ANSWER 4. Solve the system by graphing: 2 x y 4 4 x 2 y 5 Solve the system by elimination: 3x y 5 6 x y 4 Solve the system by elimination: 2 x 4 y 7 5 x 6 y 5 5. 6. Solve the system by substitution: 2 x y 10 x y 2 Solve the system by substitution: 7 x y 10 2 x y 9 7. 8. 9. Solve the system using any method: 6 x 5 y 7 4 x 6 y 7 Solve the system using any method: x 3 y 2 x 3y 3 2 2 Solve the system using any method: 9 x 5 y 18 3x 2 y 11 Solve the system using any method: x 5 y 14 2 4 x 2y 2 3 6 10. 11. 12. 13. 14. 15. The sum of two numbers is one hundred thirty-seven. Their difference is seventy-five. What are the numbers? A solution of 45% pesticide is to be mixed with a solution of 24% pesticide to form 84 liters of a 42% solution. How many liters of the 45% solution must be used? How much pure water must be mixed with 2 pints of 50% developer to produce a mixture that is 12% developer? 16. Paul has $2.95 in nickels and dimes. He has fourteen more nickels than dimes. How many of each coin does he have? Unit 3 Test Review Answers: 1. through0,7, 3,0 dashed line, shaded below the 9. 7 7 , 16 8 line 2. through0, 5 solid line, shaded below the line 10. same line, dependent system 3. (-1, 3) 11. 91 , 51 3 4. Parallel lines, inconsistent system 12. (3, 2) 5. (1, 2) 13. 106 and 31 6. 31 25 , 16 32 14. 72 liters 7. (4, 2) 15. 8. 1 43 , 5 5 16. 6 1 pt 3 29 nickels; 15 dimes Score: ___________ MATH 084: Algebra I TEST 4: Review Name: _____________________________________ Instructor:________________ Instructions: Show all necessary work in the solution space provided. Write your final answer in the answer space corresponding to the question. Do not use a calculator to approximate answers unless asked to. QUESTION & W ORKING SPACE 1. x 22 x 15 2. a8 a 12 3. 6 y3 4. 49a 3 b 7 c 5 35a 8 b 4 c 5 5. 175n 9 4 225n 6. 4 y Date: ___________ 4 5 4 9 y 3 5 y 1 ( y 4 6 y 3 2 y 4) ANSWER 7. 5h 2 8. 3a 6a 7 5a 9. (3w 5)( 4 w 5) 10. 6 x 3 y 2 (8 x 5 5 x 3 y 3 y 4 ) 11. (4a 5)( 2a 7) 12. 4x 5 7h 12 (7h 2 5h 2) 9h 2 4h 5 5 3 9x 5 13. 2a 92 14. (6 x 7 y )(6 x 7 y ) 15. 4a 1 a 2 2a 5 16. 4 x 2 8x 3 4x 2 17. 4a 3 x 2 12ax 2 18a 4 x 5 24a 2 x 2 18. x 2 x 3 6 x 2 5x 7 19. solve: 2 4n 3 2 3n 1 n 7 Solve: 1 w 2 1 5 w 4 6 20. 21. Solve the inequality and graph the solution on the number line: 3 2x 5 x 4 x 2 22. Solve the system algebraically (substitution or elimination): 2 x 4 y 6 x 2 y 5 23. Solve the system algebraically (substitution or elimination): 2 x 5 y 8 6 x y 10 24. Solve the system by graphing: 3x 4 y 2 2 x 5 y 1 Test 4 Review Answers: 2. x 37 13. 4a 2 36a 81 2. 1 a4 14. 36 x 2 49 y 2 3. 6 y 15 15. 4a 3 9a 2 18a 5 4. 7b 3 5a 5 16. 1 5. 2401n 20 6561 17. a 1 3a 2 x 3 6 2a 4 6. 3y 4 3y 3 7 y 5 18. x 2 4x 3 7. 7 h 2 16h 19 19. -1 8. 18a 8 15a 2 20. 4 5 9. 12w 2 35w 25 21. x 7 10. 48 x 8 y 2 30 x 6 y 3 18 x 3 y 6 22. 1 4, 2 11. 8a 2 18a 35 23. 3 , 1 2 12. 36 x 10 57 x 5 15 24. 2 3 2 x 4x 2, 1 1 x2