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2006 MA final

2006 MA final - MA 165 FINAL EXAM Fa112006 Page 1/9 NAME...

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Unformatted text preview: MA 165 FINAL EXAM Fa112006 ' Page 1/9 NAME 10-digit PUID # RECITATION INSTRUCTOR RECITATION TIME LECTURER INSTRUCTIONS 1. There are 9 different test pages (including this cover page). Make sure you have a complete test. 2. Fill in the above items in print. Also write your name at the top of pages 2*9. 3. Do any necessary work for each problem on the space provided or on the back of the pages of this test booklet. Circle your answers in this test booklet. 4. No books, notes, calculators, or any electronic devices may be used on this exam. 5. Each problem is worth 8 points. The maximum possible score is 200 points. 6. Using a #2 pencil, fill in each of the following items on your answer sheet: (a) On the top left side, write your name (last name, first name), and fill in the little circles. (b) On the bottom left side, under SECTION, write in your division and section number and fill in the little circles. (For example, for division 9 section 1, write 0901. For example, for division 38 section 2, write 3802). (c) On the bottom, under STUDENT IDENTIFICATION NUMBER, write in your 10—digit PUID number, and fill in the little circles. (d) Using a #2 pencil, put your answers to questions 1~25 on your answer sheet by filling in the circle of the letter of your response. Double check that'you have filled in the circles you intended. If more than one circle is filled in for any question, your response will be considered incorrect. Use a #2 pencil. 7. After you have finished the exam, hand in your answer sheet and your test booklet to your recitation instructor. MA 165 FINAL EXAM Fall 2006 Name: _— Page 2/9 2 1. lim x—x = B. —1 C. 0 D. —2 E. Does not exist at + 5 . . 2. Let f(:c) = $2 _ 25, ac 75 5 and :1: 7S —5. Is 1t poss1ble to define f at a; = —5 so as to make f continuous at :v = —5? If yes, find the value of f(—5) that makes f continuous at :2: = —5. 1 A. —-— 10 1 B. —— x/S 1 C. 1—0 1 D. —— x/E E. Not possible sin 39: + cos 5x _ 3~ $130 T — A. 8 B. —2 C. 0 D. +00 E. Does not exist 2 _ 4. The vertical asymptotes of the graph of f (x) 2 932—110—122 are a: x — A. x=3andx=—4 B.a:=—1and:c=—4 C. m:1andx=.—2 D. mz—landxz2 E. leandx=3 MA 165 FINAL EXAM Fall 2006 Name: 2 5. The equation of the tangent line to the graph of y = cos a: at (E, «7—) is 6. If f(:1:) 2 x/x2+2 , then f’(:c) :2 7. If f(x) =1n(sinx2), then ~f’(a:) = A. y— A. 25:: cot a: B. 23: cot 3:2 2:1: sin 1:2 D. 2 cot a: E. 2:13 cos x2 (1n(sin 172)) C. MA 165 FINAL EXAM Fall 2006 Name: ___— Page 4/9 8. A water tank has the shape of an inverted circular cone with base radius 15 ft and height 20 ft. If water is leaking from the tank at the rate of 72 ft3/ min, how fast is the depth of the water changing when the water is 12 ft deep? (V = %7rr2h). A. —3 ft/min 37r 24 . B. —25—7T ft/mm C ——$— ft/min ' 377 D ———8+ ft/min ' 277r E ———8— ft/min ' 97r . $3 7 9. The function f (m) = g + £132 + 12x + 5 attains a local minimum when a: = A. —4 B. *3 27 C. 5 — —2— D. 3 10. The second derivative of a function f is given by f”(x) = (a: + 2)(a: — 1)2(a: — 5). The graph of f has an inflection point when A. x=—2,m=1anda:=5 B. :L'=lonly C. x=1and$=5 D. $=~2andx=1 E. :c:—2and:v=5 MA 165 FINAL EXAM Fall 2006 Name: __—__+ Page 5/9 11. If g(z1:) = 4x3 — 351:4, which of the following statements are 2131;}? (1) The graph of g is concave downward for all :1: < 0. (2') g is decreasing on the interval (1, oo). (3) g has a local extreme value at a: = U. A. (1), (2) and (3) B. only (3) C. only (2) D. (1) and (2) E. (2) and (3) 12. Find the absolute maximum and absolute minimum values of f(x) = 2x3 —— 9x2 + 121; on the interval [0,3]. max 5, min 4 A. B. max 5, min —6 C. max 9, min 0 D. max 5, min 0 E. max 9, min ——6 13. The slope of the tangent line to the graph of ln(:c2 — 33/) = :1: — y — 1 at the 130th (2, 1) is ~ 5’: 2 0 1 1 A. B. C. D. 2 3 MA 165 FINAL EXAM Fall 2006 Name: — Page 6/9 14. The mass of a radioactive substance decreases from 12 grams to 4 grams in 1 day. How long will it take for 18 grams of the substance to decay to 2 grams? 1n3 A. 111—2 days 3 B. 5 days 1n2 C. m days D. 2 days E. 3 days _ sinzz: -—- x 15. 11m— x—m $3 A. Chlr—A %\/7_r ( 2) 16. / 50008 x dzc =2 0 A. B 6 dm 17. _: /1:v(2+1nx) . A 1 1 'ln3 1n2 HE); MA 165 FINAL EXAM Fall 2006 Name: “—— Page 7/9 % . 18~/ £de 0 1+cosx 19. If f(a:) = 9N5, then 1%) = A. 81n4 B. 8 C. 4(2+ln4) D. 8(1-l—ln4) E. 16(1+1n4) 1 20.. Let R be the region between the graph of y : — and the x—axis, from a; = a to a: = b m (0 < a < b). If the vertical line :0 = c cuts R into two parts of equal area, then c = a+b 2 lna+lnb A. MA 165 FINAL EXAM Fall 2006 Name: —___ Page 8/9 21. If 1200 cm2 of material is available to make a box with a square base and an open top, find the largest possible volume of the box. A. 5000 cm3 B. 4000 cm3 C. 4600 cm3 D. 6200 cm3 E. 4800 cm3 1 . 22. The area of the region between the graph of f (:10) = — and the x—ax1s, from 1—152 1 $=0tox=—is 2 we .6 .o 03H #1:] 021:} [OI-‘4 >1 F“ 3 23. If F(:c) = / tetZdt, then F’(2) = 0 V 96664 64632 Me“ 3868 32664 91.6.0973? MA 165 FINAL EXAM Fall 2006 Name: _______— Page 9/9 24. The hyperbola 9x2 —- 54m — 4y2 + 45 = 0 has vertices at the points A. (0,1) and (0,5) B. (2,0) and (6,0) C. (30) and (g,0) D. (1,0) and (5,0) E. (O, 2) and (0,6) 25. If a parabola with axis parallel to the y—axis and vertex at (4, —1)-passes through the point_(7, —2), then it crosses the y-axis at y = ...
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