ch4_even_ans

# Ch4_even_ans - Answers to Even-Numbered Exercises Exercises 4.1 4 critical points-1,0,2 increasing on-1 0 and(2 decreasing on-1 and(0 2 local min

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Answers to Even-Numbered Exercises Exercises 4.1 4. critical points: -1,0,2, increasing on: ( 1 , 0) and (2 , ) decreasing on: ( −∞ , 1) and (0 , 2) local min at: x=-1, x=2 local max at: x=0 6. critical point: 1 increasing on: (1 , ) decreasing on: ( −∞ , 1) local min: x=1 local max: none 14. critical points: 0 increasing on: ( 2 , 0) decreasing on: (0 , 2) local min: none local max: x=0 critical points: increasing on: decreasing on: local min: local max: 26. (a) there’s a global max at t = 10, and s 0 (10) = 0 (b) positive (c) negative (d) false 28. d, Fnal answer 32. (a) ( −∞ , 0), (0 , 1), and (2 , ) (b) (1,2) (c) 0,1,2 (d) x=1 (e) x=2 48. There’s a global max at x = 1 2 . 1

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Exercises 4.2 4. (d) 14. (e) 16. (j) 22. concave down on ( −∞ , 2) concave up on ( 2 , ) no inﬂection point 32. concave down on ( −∞ , 0) concave up on (0 , ) inﬂection point at x=0 40. x = e 1 / 2 is a critical point and local minimum, with f
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## This note was uploaded on 03/02/2012 for the course MATH 10250 taught by Professor Himonas during the Fall '08 term at Notre Dame.

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Ch4_even_ans - Answers to Even-Numbered Exercises Exercises 4.1 4 critical points-1,0,2 increasing on-1 0 and(2 decreasing on-1 and(0 2 local min

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