ANSWERS A-39 b) 2 Number Made 4 6 Number of Oil Changes Made Daily at East Store 1 3 5 7 Number of Days 17.5 23.5 29.5 35.5 41.5 47.5 53.5 59.5 65.5 2 Number Made 4 6 Number of Oil Changes Made Daily at West Store 1 3 5 7 8 9 Number of Days 17.5 23.5 29.5 35.5 41.5 47.5 53.5 59.5 65.5 SECTION 12.6, PAGE 832 11. a) 2 4 6 8 10 12 14 16 2 4 6 8 10 12 y x b) 0.981 c) Yes d) Yes 12. a) 2 4 6 8 10 12 14 2 4 6 8 1012141618 y x b) 0.907 − c) Yes d) No 13. a) 5 10 15 20 25 30 35 40 20 25 30 35 40 45 50 y x b) 0.228 c) No d) No 14. a) 1 2 3 4 5 6 7 8 20 30 40 50 60 70 80 90 y x b) 0.883 − c) Yes d) No 15. a) 2 4 6 8 10 12 14 16 2 4 6 8 101214 y x b) 0.999 c) Yes d) Yes 16. a) 10 20 30 40 50 60 10 20 30 40 50 60 70 80 90 100 y x b) 0.732 c) No d) No 17. a) 20 1 2 3 4 5 6 7 8 40 60 80 100 y x b) 0.968 − c) Yes d) Yes 18. a) 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 y x b) 1.00 c) Yes d) Yes 36. a) East West Number of Oil Changes Made Number of Days Number of Oil Changes Made Number of Days 15–20 2 15 –20 0 21–26 2 21–26 0 27–32 5 27–32 6 33–38 4 33–38 9 39– 44 7 39– 44 4 45–50 1 45–50 6 51–56 1 51–56 0 57– 62 2 57– 62 0 63– 68 1 63– 68 0
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