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CP – Algebra 1 2013-2014 Unit 5 - System of Equations & Inequalities Topic Assignment #1 Day # 7.1 Solving by Graphing Pg. 430 #2-4, 8-10, 13, 14, 15, 28 MUST USE GRAPH PAPER #2 7.1 continued (0, 1 or many solutions) + graphing calc Day 2 Worksheet #3 7.1 Solving Word Problems by Graphing Day 3 Worksheet #4 7.2 Solving by Substitution Pg. 439 #2-11, 19 #5 7.2 continued (0,1 or many solutions) Day 5 Worksheet #6 7.3/7.4 Solving by Elimination Pg. 447 #3 8, 16, 18, 25, 26 Pg. 454 #2, 3 8 #7 7.3/7.4 continued Pg. 454 #9 19 odd, 34 Pg. 463 # 15 23odd, 24 29 #8 7.6 Graphing Systems of Linear Inequalities Pg. 469 #1-8, 9-19 odd, 22, 25, 27, 33 #9 7.6 continued (graphing calculator) Pg. 469 #10-18 even, 24, 26, 29, 30 #10 Systems of Equations Review Day 10 Worksheet #11 Review for Unit 5 Test Unit 5 Targets Nov 18-22 Unit 4 Test Corrections Nov 25-29 #3 Dec 2-6 #5 Dec 9-13 MiniQuiz Inequalities #10 Review Activity #11 Dec 16-20 Word Problems QUARTERLY Dec 23Jan 5 Bungee Barbie MiniQuiz Graphing #4 MiniQuiz Substitution #6 Bungee Barbie #1 #2 THANKSGIVING BREAK #7 MiniQuiz Elimination #8 #9 UNIT 5 TEST Unit 5 Test Corrections Quarterly Review WINTER BREAK Selected Solutions… Day#1Solutions 2. Graph both equations, estimate the point of intersection, check whether the point is a solution to both equations. 9. 4,2 10. 3, 2 3. yes, solution 4. no 8. 1, 3 13. 4,0 14. 2, 2 15. 3, 5 1 1 28. , ; it is important to check your solution because when we graph, it’s often difficult to estimate the solution 2 2 when it the coordinates are not integers Day #2 Solutions 1. 1,2 , 3,5 , 5,1 6. 3,4 2. no solution 7. infinitely many solutions 12. 1,5 and 5,5 11. 1.8, 0.4 Day #3Solutions 1. year 2040 2. 3,4 3. infinitely many solutions 8. no solution 4. 4, 4 5. 6,3 9. 3,7 10. no solution 13. 1,2 3b. y 0.10x 15 4c. 4 games; costs $10.75 y 0.05x 20 3d. 100 minutes 5c. 98 adult tickets, 115 student tickets 7b. y 30x 5400, y 120x 7c. 60 vacuums Day #4 Solutions 2. equation 2 for y because y is already isolated 7. 4,5 8. 3,22 3. 5,3 4. 1,1 5. 2, 1 9. 6,7 10. 8, 7 11. 2, 2 6a. x= # of square feet y = total cost 6c. 10 square ft. 6. 13,6 Day #5 Solutions 1. infinitely many solutions 2. 2,2 3. no solution 4. infinitely many solutions 5. no solution 6. 3,0 7. 8, 25 8. infinitely many solutions 9. D 10. A 1,2 16. 15, 62 Day #6 Solutions P447 4. 3,29 P454 2. varied explanations 6. 12,6 8. 4. (5, 6) 6. (19, 16) 18. 6, 1 26. 4, 9 8. (8, 3) Day #7 Solutions p454 34. -4, you can add and cancel the x-terms 28. one solution (0, 9) p463 24. C 26. no solution x 1 24. x 4 y 3 26. y 2 30. check your graph with your calculator Day #8 Solutions 4. solution 22. B Day #9 Solutions 10-18. check your graph with your calculator!