MATH 0310 Intermediate Algebra Homework Assignments Email any Comments to: [email protected] LSC–North Harris Last Revision: 12/10/13 MATH 0310 Homework Assignments Table of Contents Chapter 2 Absolute Value Equations 2.5 Absolute Value Equations Chapter 3 3.3 3.4 3.5 3.6 3.7 3.8 Factoring Polynomials and Factorable Quadratic Equations GCF and Grouping Factoring Binomials Factoring Trinomials Factoring Summary Quadratic Equations Applications – Quadratic Equations Chapter 4 4.1 4.2 4.3 4.4 4.5 4.6 and 4.7 4.8 4.9 Rational Expressions and Rational Equations Integer Exponents Reducing Rational Expressions Multiplying and Dividing Rational Expressions Adding and Subtracting Rational Expressions Complex Fractions Division of Polynomials Rational Equations Applications-Rational Equations Chapter 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 Exponential and Radical Expressions and Radical Equations Rational Exponents Radicals Simplify Radical Expressions Adding and Subtracting Radical Expressions Operations with Radical Expressions Radical Equations Complex Numbers Chapter 6 6.1 6.2 6.3 6.4 6.5 2.2 6.7 Linear Relations and Functions Cartesian Coordinate System Relations and Functions Function Notation and Combinations of Functions Linear Functions Equations of Lines Linear Inequalities in One Variable Linear Inequalities in Two Variables Chapter 7 7.3 7.4 Solving Quadratic Equations Extraction of Roots Method and Completing the Square Method Quadratic Formula MATH 0310 Homework Assignments MATH 0310 Homework Assignments Ch 2 2.5 Absolute Value Equations Absolute Value Equations Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Find the solutions of the following equations. 3. z 23 42. 2 5 x 1 14 6. t 4 45. 2 x 4 2 11 9. s 0 48. 2 3x 4 1 12. 3z 6 51. 2 x 3 5 7 15. 5s 13 54. 4 x 2 2 18. 2 x 34 57. 10 5 6 4 x 12 21. 4 s 24 60. 1.8 23.9 x 13.1 6.005 394 24. 5 z 40 63. 6 x 4 x 3 27. x 5 9 66. 3x 1 5 2 x 30. x 6 6 69. 33. x 7 9 72. x 2 x 1 36. 2 x 6 0 75. 39. 2 3 4 x 15 1 x5 x2 2 1 1 1 1 x x 2 3 2 4 MATH 0310 Homework Assignments Ch 3 3.3 Factoring Polynomials and Factorable Quadratic Equations GCF and Grouping Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Factor completely. 1. 10 x2 35 17. 2. 8x3 18xy 2 x 18. 3. 6 x5 18x3 10 x2 19. 4. 4 x( x 2 y) 6 y( x 2 y) 20. 5. 2 x( x 3) ( x 3) 21. 6. 8 y 2 z (1 5x) 6 yz 3 (1 5x) 7. 15x( y 3) 5z(3 y) 8. 2ax 3bx 2ay 3by 9. 6cf 2cg 6df 2dg 10. 4 x 15xy 3x 2 20 y 11. 3x2 y 5x2 y 2 12 xy 2 20 xy3 12. 3 y3 7 y 2 18 y 42 13. 8x6 12 x4 40 x3 60 x 14. 54 y3 6 x4 27 x3 y 12 xy 2 15. 16. ( ) ( ) ( ) ( ) MATH 0310 Homework Assignments 3.4 Factoring Binomials Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Factor completely. 1. x 2 9 11. 54 x3 128 y3 2. 36 x 2 49 y 2 12. 375x3 3 3. 27 x3 y 12 xy 3 13. x2 (2 x 3) (2 x 3) 4. 3x 2 48 14. x3 ( x 6) 8( x 6) 5. 81x 4 16 y 4 15. 5x3 2 x2 45x 18 6. ( x 3)2 49 16. 3x3 4 y3 4 x2 y 3xy 2 7. (2 x 3 y)2 9 z 2 17. 3x4 5x3 3x 5 8. x3 64 18. 4 x4 3x3 32 x 24 9. 8 x3 1 19. 4 x5 x3 32 x2 8 10. 64 x3 27 y3 20. 7 x5 7 x3 28x3 y 2 28xy 2 MATH 0310 Homework Assignments 3.5 Factoring Trinomials Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Factor completely. 1. x2 9 x 14 11. 9 x2 30 x 25 2. x 2 9 x 8 12. 2 17 x 9 x2 3. x2 x 7 13. 6 x2 13x 15 4. x2 6 x 9 14. 20 x2 60 x 35 5. 3x2 24 x 21 15. 15x3 42 x2 9 x 6. 2 x3 16 x2 32 x 16. 9 x 2 16 xy 4 y 2 7. x 2 6 xy 5 y 2 17. x4 2 x2 3 8. 6 x2 13x 5 18. 4 x4 7 x2 2 9. 12 x2 25x 7 19. 6 x2 19 x 15 10. 9 x2 15x 4 20. 10 x2 19 x 6 MATH 0310 Homework Assignments 3.6 Factoring Summary Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Factor Completely. 1. 2 x2 7 x 3 11. x 2 6 xy 9 y 2 2. x 2 7 xy 8 y 2 12. 4 x2 4 x 3 3. 3 2 x 1 11 2 x 1 20 13. 25x 2 16 y 2 4. 125x3 8 y3 14. x2 10 x 25 81y 2 5. x 2 xy 12 y 2 15. 3x2 8xy 4 y 2 6. x 2 3xy 10 y 2 16. 7. 18x3 y3 6 x2 y 4 4 xy5 17. 4 x2 24 x 36 8. x2 10 x 25 18. 6m5n4 15m3n6 3m2 n4 9. 64 x3 1 19. 2 10. 2 x 2 xy 3 y 2 x 1 2 x 4 3 4 y2 125 y 3 MATH 0310 Homework Assignments 3.7 Solving Quadratic Equations by Factoring Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Solve by factoring. 1. x2 6 x 8 0 8. x2 5x 4 10 2. 2 x2 12 x 32 0 9. 8x2 13x 9 5x 4 3. 6 x2 2 x 0 10. 3x2 5x 20 2 x2 3x 4 4. 4 x2 9 0 11. 9 x2 7 x 7 3x( x 4) 5. 2 x2 7 x 4 0 12. 3x2 8x 31 (2 x 3)( x 7) 6. 6 x2 41x 7 0 13. (2 x 5)( x 4) ( x 7)( x 4) 7. 12 x2 31x 9 0 MATH 0310 Homework Assignments 3.8 Applications Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Find the solutions. 1. 2. 3. 4. 5. 6. ⁄ 7. 8. ( ) MATH 0310 Homework Assignments Ch 4 4.1 Rational Expressions and Rational Equations Integer Exponents Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Evaluate each of the following. Your answers should have NO exponents. 1. 22 23 7. (2)3 14. 22 41 (7) 4 2. (7)5 8. (3)4 15. 80 81 8 1 2 3. (4 ) 4. 82 9. 3 16. 5 5 5 10. (3)3 2 17. 3 11. 33 5. (8)2 3 12. 2 4 6. 2 1 0 4 5 18. 8 1 3 4 19. 3 2 5 2 20. 1 3 3 1 13. 42 31 Simplify each of the following. Your answers should have no NEGATIVE exponents. 8 x9 y 3 21. 3 2 4x y 2 2x4 24. 2 5y 22 x 3 y 4 27. 1 1 2 8 x y 3 22. (3x2 y 2 )1 (4 xy3 )2 5 x 3 y 25. 2 2 3x y 23. (8 x0 y 4 )0 8 x3 y 2 26. 10 x 6 y 5 28. 2x y 5x y 29. 3x y 2x y 3 3 4 4 0 7 2 4 4 7 3 3 4 40 x 2 y 6 30. 3 4 8x y 2 MATH 0310 Homework Assignments 4.2 Reducing Rational Expressions Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Reduce the following expressions to lowest terms. 8x4 y 2 1. 6 xy 3 6x2 7 x 5 8. 2 x2 x 9ab 2 c3 2. 4ab3c 9. 3x3 x 2 y 3. 2 2 x y 2 xy 3 4 x 2 12 x 9 10. 2 x 2 11x 12 3x 6 y 4. 3x 11. 4 x3 y 4 x 2 y 5. 2 xy 2 2 x 2 y 2 2 x 2 5 x 12 12. 9 4 x2 x2 5x 6 6. 2 x 4 x 21 13. 6x2 7 x 3 7. 4x2 9 27 x3 1 14. 6x2 4x 2 x 2 3x 10 4 x2 3x 2 9 x 30 6 x 2 30 x x3 8 3x 2 2 x 8 MATH 0310 Homework Assignments 4.3 Multiplying and Dividing Rational Expressions Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Perform the indicated operations and reduce to lowest terms. 1. 5 xy 2 3x 4 y 7 14 x5 y 2 7a3b 4 6a 2b6 15a 4b 2. 5 x3 y 5 14ab7 a 2b 2 8a3b 2 9 xy8 12 xy 3. 2x 2 x 3 5 x 15 xy y 10 x 2 y 2 5 xy 2 6x 3 4. 8 4x 12 x 24 5. 10 x 2 17 x 3 5 x 2 41x 8 2 x2 7 x 6 2 x2 x 6 6. x2 1 3x 2 2 x 8 3x 2 x 4 5 x 5 x 2 7. 6 23x 4 x 2 3x 2 x 24 3x 2 10 x 48 8 x 2 6 x 1 8. 3x 2 10 x 8 (2 x 5) 2 x 2 3x 20 9. x3 8 3x 2 2 x 1 x 2 2 x 3 3x 2 5 x 2 10. x3 1 2 x 2 3x 20 2 x 2 3x 5 2 x 2 11x 12 8 x3 12 x 2 4 x2 9 MATH 0310 Homework Assignments 4.4 Adding and Subtracting Rational Expressions Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Perform the indicated operations and reduce to lowest terms. 1. 3 7 2x 2x 11. 5 2 x2 x3 2. 2n 9n xy xy 12. 3 5 2x 5 x 3 3. x 3x 5 4x 7 4x 7 13. x 2 x 3 2x 3 x 6 4. 5x 1 2x 9 2 2 2 x x 11 2 x x 11 14. x 1 3x 2 2x 5 2x 3 5. x2 2 x 1 x 1 x 1 15. 2 5 2 x 4 x 5 x 2 x 15 6. 7x 3x y2 2 y 16. 4x 1 2 3x 5 x 2 3x 13x 4 2 x 2 8 x 2 x 12 7. x 5 5 x 17. 2x 3 x2 2 2 x 1 x 6x 5 2 x2 5 x2 2 8. x 1 1 x 18. 3x 5 x 1 2 x x 12 x 5 x 6 19. x 1 x2 2 6x 7 x 2 2x 7 x 3 20. x 1 4x 5 2 4 x 4 x 15 8 x 10 x 3 8 3 9. 5x 2 y 10. 3 7 2 2 4 xy 3x y 2 2 2 2 2 MATH 0310 Homework Assignments 4.5 Complex Fractions Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Simplify the following fractions. 5 1. 7 45 16 5 3 2 2x 2x 8. 15 9 2 2 2x 2x 1 3x 2 y2 2. 5x4 4 y3 9. 2 x 3x y2 y 3. 8 x 4 12 x 3 3 y3 3 y 2 2 8 xy 4 y 6 xy 2 4. 12 x 2 y 6 xy 9 x2 y 2 3 x 5. 7 1 x 2 2 2 x y 6. 4 2 2 x y 1 1 x y 7. 1 1 2 2 x y 2x y 2 1 y x 1 9x2 10. 1 3x 1 3 1 2 x 3 11. x3 1 1 x y 12. x y 5 4 2 2 h 13. h 4 3 14. 2 x 1 5 2 2x 1 MATH 0310 Homework Assignments 4.6 and 4.7 Division of Polynomials Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Perform the indicated divisions using LONG division method. 1. 24 x 2 62 x 36 4x 7 40 x 2 44 x 17 2. 5x 3 3. 2 x3 13x 2 10 x 19 2x 3 19 8 x 21x 2 12 x3 4. 4x 7 5. 4 x2 7 2x 3 4 x3 x 7 6. 2x 3 7. 6 x3 20 x 2 19 2x 6 2 x 4 x3 3x 2 9 x 13 8. x2 x 3 Perform the indicated divisions using SYNTHETIC division. x 2 3x 5 9. x2 10. 2 x3 7 x 2 x 6 x 3 x3 7 x 4 11. x2 12. 3x3 11x 2 5 x x4 (Hint: need a place holder for the constant) x 4 2 x3 5 x 2 x 5 13. x2 14. 2 x 4 3x3 x 2 7 x 5 x 1 6 x 4 7 x3 11x 2 2 x 3 15. 1 x 6 MATH 0310 Homework Assignments 4.8 Rational Equations Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Solve the following equations. Do not forget to check solutions. 1. 3 9 2x 8 10. 5 1 2 x 2 3x 2. 3 1 11 2 x 3x 12 11. 2 x 36 2 2x 1 x 4 2x 7 x 4 3. x 1 x 5 2 4 12. 4x x 12 2 x 1 x 3 x 2x 3 4. 2 3 5 2x 1 x 4 2x 1 13. 3x 6 1 2x 5 x 5. 2 1 3 x 1 3x 2 3x 2 14. x 3 x 1 9x 1 7 6. 5 1 6 2 2x 1 2x 1 4x 1 15. 9x 3 x 10 x 30 x 3 7. 1 2 1 2 x 4 x 1 8x 2 x 16. 2 4 4 x 3 x 1 3 8. 2x 1 2x 1 10 2 x2 x2 x 4 17. 1 5 3 x 5 x 2 2 9. 1 1 1 x2 6x 6 18. x2 x5 5 2x 1 x 3 3 MATH 0310 Homework Assignments 4.9 Applications-Rational Equations Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Find the solutions to the following problems. 1. The sum of a number and its reciprocal is 25 . What is the number? 12 2. The sum of the reciprocals of two consecutive integers is integers? 7 . What are the 12 3. The sum of the reciprocals of two consecutive even integers is integers? 7 . What are the 24 4. Tameka can mow her yard in 2 hours. Her brother Dante can mow the yard in 3 hours. Working together, how long will it take them to mow the yard? 5. Brittany can prepare her report in 1 1 2 hours. Her co-worker, Firza, can prepare the report in 6 hours. Working together, how long will it take them to prepare the report? 6. Working together Debbie and Jim can clean the house in 4 hours. Working alone, Debbie can clean the house in 5 hours. How long does it take Jim to clean the house? 7. Working together, Elmer and his son can paint their house in 3 days. Working alone, Elmer can spray paint the house in 4 days. How long will it take his son, using a brush, to paint the house by himself? 8. Colonel Scanlon can fly his plane 300 mi with the wind in the same time that he can fly it 240 mi against the wind. If the speed of his plane is 180 mi/hr, what is the wind speed? 9. Maureen can fly her plane 250 mi with the wind in the same time that she can fly it 200 mi against the wind. If the speed of her plane is 90 mi/hr, what is the wind speed? MATH 0310 Homework Assignments Ch 5 5.1 Exponential and Radical Expressions and Radical Equations Rational Exponents Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Evaluate each of the following, if possible. 1. 36 1 1 25 2. 49 3. 9 4. 4 1 1 1 15. 25 1 3 16. 1 3 2 2 49 3 2 2 1 10. 32 1 14. 49 3 2 2 6. 16 1 27 9. 8 5. (16) 7. 64 8 8. 125 2 1 11. 4 4 5 16 18. 81 2 1 3 2 4 1 19. 25 3 25 3 1 13. 16 3 17. 100 5 2 12. 8 4 1 3 2 20. 27 27 1 1 1 6 2 6 Simplify each of the following. Your answers should have no NEGATIVE exponents. 3 21. x 4 x 22. 23. 4x 3 2x 2 3x 1 1 12 1 2 8x 1 24. 6 x3 y 1 25 x3 27. 1 3 9y 2 1 4x 3 y2 3 1 25. 2 x 3 5 x 1 6 1 27 x 1 26. 3 2 8y 2 2 29. 5 x 4 7 x 3 4 1 3 2 3 MATH 0310 Homework Assignments 5.2 Radicals Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Evaluate each of the following, if possible. 1. 100 5. 2. 121 4 6. 27 7. 3. 4. 3 3 64 8. 49 3 3 8 27 9. 4 5 10. 5 32 243 14. 11. 4 1 81 15. 32 100 49 13. 43 132 12. 1 16 3 3 27 64 81 Convert the following expressions to radicals. 16. 7 17. 2 3 5 1 5 18. 4xy 19. 2x 1 3 4 2 Convert the following radicals to expressions with rational exponents. Simplify where possible. 20. 7 21. x 22. 4 3 k4 7x y 23. 24. 8 3 3 a15 6 MATH 0310 Homework Assignments 5.3 Simplify Radical Expressions Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Simplify the following radicals. 1. 48 2. 80 3. 3 16 4. 4 80 5. 3 128x 7 6. x2 y 2 7. 32x 7 y 4 8. 9. 10. 11. 12. 13. 14. 5 8x 15. 16. 3 1 4 17. 3 1 2 18. 2 9x 19. 3 7x 20. 2x 3 y3 1 3 21. 8x4 5 y2 3 12 22. 3 7 8x 3 5 23. 3 16 3x 2 3 6 24. 3 3y2 5x4 144x5 y 7 z 8 3 81x9 y 2 z 4 5 x 25. 49 x3 9 y3 MATH 0310 Homework Assignments 5.4 Adding and Subtracting Radical Expressions Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Perform the indicated operations. 1. 3 7 5 7 8 7 2. 2 15x 7 15x 5 15x 3. x 3 10 y 8x 3 10 y 4. 5 12 2 27 3 3 5. 5 8 18 2 32 6. 7. 3 32 3 108 27 x 2 12 x 2 48x 8. x 18x 5 2 x3 2 x 8x 9. 27 x 2 12 x 150 y 4 24 y 10. x 20 x 2 x 45 2 500 11. 1 5 2 2 12. 3 80 5 13. 1 3 108 2 3 14. 3 5 2 27 3 3 15. 2 4 50 2 2 MATH 0310 Homework Assignments 5.5 Operations with Radical Expressions Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Perform the indicated multiplications and simplify your answers. 7. 3 8. 9. 3 10. 11. 5 12. 3 4 1. 3 2 5 2. x 3 x 3. 2 7 4. 5. 2 3 4 5 3 2 6 7 6. 2 x 3 y 4 x 5 y 5 7 8 3 10 2 2 6 3 2 x 7 2 2 x2 5 3 2 2x 6 13. 1 32 17. x 5 x 4 14. 2 3 5 18. 3 2 6 3 15. x x y 19. 2 3 2 3 20. 3 6 5 3 6 Rationalize the denominator of the following radicals. 16. 5 3 x y x y 5 37 2 34 2 MATH 0310 Homework Assignments 5.6 Radical Equations Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Find the solutions(s) of the following radical equations. 1. 2x 1 3 10. x 2 8x 26 5 x 2. x2 7 4 0 11. 2x 5 x 3 3. 3x 7 2 0 12. x 8 x 4 4. 3 3x 1 4 13. 3x 5 1 3 x 5. 3 3x 2 10 x 2 0 14. 3 x x 3 6. 4 3x 5 3 15. x4 x 6 7. 3x 40 x 16. x 8. 2 x2 2 x 3 x 17. 2x 9. 4 x2 x 1 1 2 x 18. 2 4 x 5 2 3 2 5x 6 3 64 2 x2 x 2 8 MATH 0310 Homework Assignments 5.7 Complex Numbers Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Perform the indicated operations. 9. 5 2i 3 i 1. 121 2. 10. 7(3 9i) 9 16 11. 2i 4 7i 3. 50 12 4. 12. 6 i 3 4i 21 21 5. 5 12 6 6. 7. 13. 21 1 5 3i 2 4i 14. 2 5i 2 5i 25 49 36 8. (2 3i) (5 6i) 15. 16. 2 3i 17. 3 i 3 i 3 i 2 2 Rationalize the denominators. 18. 5 3i 22. 3 2 3i 26. 9 17i 2i 19. 5 3i i 23. 2i 1 3i 27. 2 5i 1 4i 20. 4i 2i 24. 4i 3 5i 21. 1 4 2i 25. 3 4i 3i MATH 0310 Homework Assignments Ch 6 6.1 Linear Relations and Functions Cartesian Coordinate System 1. Find the ordered pairs associated with the given points: Make a table of values and graph the following equations on graph paper provided. (next page) 2. y 2 x 3 7. y 9 x 2 3. x 2 y 4 8. x 1 y 2 4. 1 x2 y 2 5. 2 x 3 y 0 6. y x 2 5 9. y x 4 10. y x 2 MATH 0310 Homework Assignments 6.1 (Continued) 2. y 2 x 3 3. x 2 y 4 4. 5. 2 x 3 y 0 6. y x 2 5 7. y 9 x 2 8. x 1 y 2 9. y x 4 10. y x 2 1 x2 y 2 MATH 0310 Homework Assignments 6.2 Relations and Functions Do all work on notebook paper. All work should be neat and organized. Write the following sets as sets of ordered pairs and identify the domain and range. 3 1. V ( x, y ) : y 2 x 7, x 5,0, 2,1, 2 2. Z {( x, y) : y x 3, x 2,0, 2} 1 3. X ( x, y ) : y 2 x 1, x 1,3,5, 2 Determine the domain and range of each relation whose graph is given. Determine which of the following are graphs of functions. 4. 5. MATH 0310 Homework Assignments 6.2 (Continued) 6. 7. 8. 9. MATH 0310 Homework Assignments 6.2 (Continued) 10. 11. 12. 13. MATH 0310 Homework Assignments 6.2 (Continued) 14. 15. 16. 17. MATH 0310 Homework Assignments 6.2 18. (Continued) 19. MATH 0310 Homework Assignments 6.3 Function Notation and Combinations of Functions Do all work on notebook paper. All steps should be shown. All work should be neat and organized. For the given functions, find the following values: f (2), f (1), f (0), f (1), f (a ), f (a h) 1. f ( x) 2 x 3 4. f ( x) 5 x 2 2. f ( x) 3 x 5. f ( x) 2 x 2 3. f ( x) x 2 2 f ( x) . g Find ( f g )( x ), ( f g )( x ), ( f g )( x ), 6. f ( x) 2 x 2 5x 1 , g ( x) x 2 8. f ( x) 2 x 3 , g ( x) x 11 7. f ( x) x 2 5 , g ( x) x2 9 9. f ( x) x3 3x 5 , g ( x) 2 x 1 Let f ( x ) 3 x 1, g( x ) 3 x 5 x 1 , m( x ) x 4 , and p( x ) 2 x 1. Find the following: 2 2 10. f (2) 16. (m p)(1) 22. f (a) 11. m(3) 17. ( g f )(0) 23. f (a h) 12. 5 f (2) 4m(3) 18. g ( x) m( x) 13. f (2) 3 19. 14. g (3) m(3) 15. g (3) m( x ) p( x) 24. f ( a h) f ( a ) h 25. g (a) 20. g (2 x) 26. g (a h) 21. p(3x) 27. 2 g ( a h) g ( a ) h MATH 0310 Homework Assignments 6.4 Linear Functions Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Solve for y. Identify the slope and y-intercept. 1. 2 x y 6 4. 2 x 3 y 8 2. 3x 4 y 8 5. 4 y 12 0 3. x 3 y 0 6. 1 3 y x2 0 3 4 Find the x-intercept and y-intercept. 7. 3x 4 y 6 8. 4 x 5 y 10 9. 5x 3 y 0 10. y 2 x 5 11. 2 1 y x 3 3 5 Find the slopes of the lines passing through the following points. 12. (6,0) and (0, 3) 15. (5, 2) and (9, 2) 13. (4,1) and (3, 5) 16. (3,1) and (3,10) 14. (3, 7) and (6, 2) MATH 0310 Homework Assignments 6.4 (Continued) Graph the following lines. Find the slope and y-intercept. 17. 3x y 2 m= 18. x 2 y 4 b= 20. 3x 5 y 0 m= m= b= 19. 4 y 3x 8 b= 21. y 2 x b= 23. x 3 m= 24. 3 y 6 0 5 2 m= b= 22. y 4 b= m= b= m= m= b= 25. 5x 15 0 m= b= MATH 0310 Homework Assignments 6.5 Equations of Lines Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Find the equations of the following lines. Write answers in slope-intercept form. 1. m 5 ; y-intercept 1 2 2. m 1; y-intercept 9 4. m 0 ; y-intercept 11 5. m 0 ; y-intercept 2 5 1 3. m ; y-intercept 3 2 Find the equations of the following lines. Write answers in slope-intercept form when possible. 6. m 3 ; through ( 1, 2) 9 7. m ; through (3, 8) 2 2 8. m ; through (5, 3) 3 9. m 0 ; through ( 4, 12) 10. m is undefined ; through (3, 7) Find the equations of the lines passing through the given points. Write answers in slope-intercept form when possible. 11. (2, 4) and (5,7) 12. (8,6) and (4, 3) 13. (0,0) and (2,3) 14. (8, 4) and (3, 4) 15. (5,3) and (5, 6) MATH 0310 Homework Assignments 6.5 (Continued) Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Find the equations of the lines passing through the given points parallel to the given line. Write answers in slope-intercept form when possible. 16. Through (1, 2) ; parallel to y 3x 4 17. Through (3,11) ; parallel to 5 x 4 y 8 18. Through (2,5) ; parallel to 3x 7 y 21 19. Through (3, 7) ; parallel to y 12 20. Through (8, 9) ; parallel to x 5 Find the equations of the lines passing through the given points perpendicular to the given line. Write answers in slope-intercept form when possible. 21. Through (1, 2) ; perpendicular to y 3x 4 22. Through (3,11) ; perpendicular to 3x 5 y 10 23. Through (2,5) ; perpendicular to 4 x 3 y 21 24. Through (3, 7) ; perpendicular to y 4 25. Through (8, 9) ; perpendicular to x 7 MATH 0310 Homework Assignments 2.2 Linear Inequalities Find and graph the solutions of the following inequalities. Express your answers using interval notation. 1. 4 x 2 10 2. 6 2x x 3. 1 5 3 x 3 x 5 4 2 Find and graph the solutions of the following inequalities. Express your answers using interval notation. 4. 7 x 4 1 5. 5 2 3x 11 Find and graph the solutions of the following compound inequalities. Express your answers using interval notation. 6. 5x 2 4 and 2 x 7 3 7. x 1 4 or 1 x 4 MATH 0310 Homework Assignments 6.7 Linear Inequalities in Two Variables Solve for y, if possible. Identify the slope and y-intercept. Graph. 1. y 2 x 6 2. 3x 2 y 12 y 3. y ________ y ________ m _______ m _______ b ________ b ________ 4. y 4 x 5 1 x 1 3 y ________ y ________ m _______ m _______ b ________ b ________ 5. 4 x 2 y 6 6. 7 3x y y ________ y ________ m _______ m _______ b ________ b ________ MATH 0310 Homework Assignments 6.7 (Continued) Solve for y, if possible. Identify the slope and y-intercept. Graph. 7. 5x 3 y 9 8. 2 y 7 x 8 y ________ y ________ m _______ m _______ b ________ b ________ 9. 2 x 3 y 10. x 4 y 0 y ________ y ________ m _______ m _______ b ________ b ________ 11. y 3 12. x 5 y ________ y ________ m _______ m _______ b ________ b ________ MATH 0310 Homework Assignments Ch 7 7.3 Solving Quadratic Equations Extraction of Roots Method and Completing the Square Method Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Use the Extraction of Roots method to find the solutions of the following quadratic equations. 1. x 25 2 8. 7 x 2 0 2. x 80 9. 2 x 3 8 3. x 121 10. (2 x 7) 6 4. x 64 0 11. (4 x 5) 9 5. 4 x 81 0 12. ( x 1) 75 2 2 2 2 6. 9 x 49 0 2 7. 5 x 8 0 2 2 2 2 2 13. (3x 5) 27 2 2 14. (5 x 1) 50 2 Find the solutions of the following quadratic equations by completing the square. 15. x 4 x 1 0 20. 4 x 4 x 2 0 16. x 2 x 7 0 21. 2 x 5 x 4 0 17. x 4 x 29 0 22. 4 x 4 x 17 0 18. x 2 x 37 0 23. 4 x 12 x 7 0 2 2 2 2 19. x 5 x 2 0 2 2 2 2 2 MATH 0310 Homework Assignments 7.4 Quadratic Formula Do all work on notebook paper. All steps should be shown. All work should be neat and organized. Use the quadratic formula to find the solutions of the following quadratic equations. 1. x 9 x 9 0 8. 2 x 8 x 7 0 2. 9 x 2 x 2 0 9. 4 x 4 x 3 0 3. 8x 10 x 1 0 10. 8x 4 x 5 0 4. 6 x 2 x 5 0 11. x(2 x 3) 7 5. x 6 x 8 0 12. 2 x( x 3) 1 6. 8 x x 2 0 13. ( x 5)(3x 1) 4 2 2 2 2 2 2 7. 4 x 6 x 9 0 2 2 2 2 14. 1 1 1 0 2 x x2
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