Plane Trigonometry - Old Exam 2 - Fall 2000 | MATH 128, Exams of Trigonometry

Material Type: Exam; Class: Plane Trigonometry; Subject: Mathematics; University: West Virginia University; Term: Fall 2000;

Typology: Exams

Pre 2010

Uploaded on 07/30/2009

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Math.128 Fall 2000 Test 2
I
PRINT NAME ___________________ INSTRUCTOR __________________
SIGNATURE_____________________ STUDENT NUMBER ______________
Version 1
Circle your answer on the sheet and also mark your answer on the answer
sheet. If you change your answer change in both places.
dne denotes does not exist
1) Given f(x) = -6/x , find f'(3).
A) 6/3 B) 0 C) โ€“2 D) 1/3 E) -6x2
AE) 2/3 BE) dne CE) โ€“9/5 DE) none of the above
2) Given f(x) = (3x + x2)5, find f'(-1).
A) 80 B) 0 C) 1 D) 85 E) 15
AE) -32 BE) -10 CE) dne DE) none of the above
3) Given f(x) = x2 + x + 1, find all x at which f(x) has a horizontal
tangent line
A) 1 B) 0 C) 5 D) no such x E) ยฑ2
AE) 0, ยฑ1/2 BE) 0, 1 CE) โ€“1/2 DE) none of the above
4) Given f(x) = 3x2 + x - 2 , find f'(2).
A) 6x B) dne C) 4 D) 11 E) 0
AE) 14 BE) 13 CE) 12 DE) none of the above
5) Given f(x) = (x + 2x2)(4x - 3), find f'(x).
A) (x + 2x2)(4x - 3) B) (1 + 4x)4
C) (1 + 2x2)( 4x - 3)+ 4(x + 2x2) D) (1 + 4x)(4x - 3)
E) (x + 2x2)/(4x - 3)
AE) (1 + 4x)(4x - 3)+ 4(x + 2x2) BE) (x + 2x2) 2
CE) 8x3 - 14x2 - 3x DE) none of the above
6) Given f(x) = (1 + 2x2)/(3x - 2), find f'(-1).
A) โ€“29/25 B) 0 C) 3 D) โ€“11/5 E) -4/3
AE) 11/5 BE) 11/25 CE) dne DE) none of the above
7) Given
fx x
()=7
, find f'(16).
A) 7 B) โ€“7/128 C) โ€“7/8 D) โ€“7/2 E) 0
AE) 7/16 DE) 7/4 CE) 6.78125 DE) none of the above
8) Find rate of change of f(x) = 4x2 โ€“ 2x at x = 3
A) dne B) 0 C) 34 D) 22 E) 24
AE) 10 BE) 28 CE) 50 DE) none of the above
pf3
pf4

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PRINT NAME ___________________ INSTRUCTOR __________________

SIGNATURE_____________________ STUDENT NUMBER ______________

Version 1

Circle your answer on the sheet and also mark your answer on the answer sheet. If you change your answer change in both places. dne denotes does not exist

  1. Given f(x) = -6/x , find f'(3). A) 6/3 B) 0 C) โ€“2 D) 1/3 E) -6x^2 AE) 2/3 BE) dne CE) โ€“9/5 DE) none of the above

  2. Given f(x) = (3x + x^2 )^5 , find f'(-1). A) 80 B) 0 C) 1 D) 85 E) 15 AE) -32 BE) -10 CE) dne DE) none of the above

  3. Given f(x) = x^2 + x + 1, find all x at which f(x) has a horizontal tangent line A) 1 B) 0 C) 5 D) no such x E) ยฑ AE) 0, ยฑ1/2 BE) 0, 1 CE) โ€“1/2 DE) none of the above

  4. Given f(x) = 3x^2 + x - 2 , find f'(2). A) 6x B) dne C) 4 D) 11 E) 0 AE) 14 BE) 13 CE) 12 DE) none of the above

  5. Given f(x) = (x + 2x^2 )(4x - 3), find f'(x). A) (x + 2x^2 )(4x - 3) B) (1 + 4x) C) (1 + 2x^2 )( 4x - 3)+ 4(x + 2x^2 ) D) (1 + 4x)(4x - 3) E) (x + 2x^2 )/(4x - 3) AE) (1 + 4x)(4x - 3)+ 4(x + 2x^2 ) BE) (x + 2x^2 )^2 CE) 8x^3 - 14x^2 - 3x DE) none of the above

  6. Given f(x) = (1 + 2x^2 )/(3x - 2), find f'(-1). A) โ€“29/25 B) 0 C) 3 D) โ€“11/5 E) -4/ AE) 11/5 BE) 11/25 CE) dne DE) none of the above

  7. Given f x x

, find f'(16).

A) 7 B) โ€“7/128 C) โ€“7/8 D) โ€“7/2 E) 0 AE) 7/16 DE) 7/4 CE) 6.78125 DE) none of the above

  1. Find rate of change of f(x) = 4x^2 โ€“ 2x at x = 3 A) dne B) 0 C) 34 D) 22 E) 24 AE) 10 BE) 28 CE) 50 DE) none of the above
  1. Which of the statements best describes function with the graph below

A) fโ€™ dne at (1, 0) and fโ€™ is equal 0 at (0, 1) B) fโ€™ equal to 0 at (1, 0) C) fโ€™ dne 0 at (0, 1) D) fโ€™ exists for all x E) fโ€™ is equal to 0 for all x AE) cannot say anything about fโ€™ without formula BE) fโ€™ is never negative CE) fโ€™ is positive at (1, 0) DE) none of the above

  1. Given f(x) = 9x^2 - 2 , find lim

h

f x h f x โ†’ h

0

A) 9x^2 - 2 B) x^2 - 2 C) 18x + h D) 18x E) 18x โ€“ 2 AE) dne BE) 0 CE) 9h DE) none of the above

  1. Given f(x) = (7x + 2x^2 )^4 , find f'(1). A) 40 B) 32076 C) 0 D) 2916 E) 44 AE) 8019 BE) 6561 CE) dne DE) none of the above

  2. Given f(x) = (x^2 + 4)/(2x - 9), find f'(-1). A) 32/121 B) 12/11 C) 12/121 D) โ€“5/11 E) 25/ AE) โ€“1 BE) 0 CE) dne DE) none of the above

  3. Given f(x) = 2(x + 9x^2 ), find f'(1). A) 38 B) 19 C) 40 D) 114 E) 0 AE) 2 BE) 18 CE) 20 DE) none of the above