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Let 
f be a continuous function on the closed interval 
[-5,0], where 
f(-5)=0 and 
f(0)=5.
Which of the following is guaranteed by the Intermediate Value Theorem?
Choose 1 answer:
(A) 
f(c)=-2 for at least one 
c between -5 and 0
(B) 
f(c)=2 for at least one 
c between 0 and 5
(C) 
f(c)=2 for at least one 
c between -5 and 0
(D) 
f(c)=-2 for at least one 
c between 0 and 5

Let f f be a continuous function on the closed interval [5,0] [-5,0] , where f(5)=0 f(-5)=0 and f(0)=5 f(0)=5 .\newlineWhich of the following is guaranteed by the Intermediate Value Theorem?\newlineChoose 11 answer:\newline(A) f(c)=2 f(c)=-2 for at least one c c between 5-5 and 00\newline(B) f(c)=2 f(c)=2 for at least one c c between 00 and 55\newline(C) f(c)=2 f(c)=2 for at least one c c between 5-5 and 00\newline(D) f(c)=2 f(c)=-2 for at least one c c between 00 and 55

Full solution

Q. Let f f be a continuous function on the closed interval [5,0] [-5,0] , where f(5)=0 f(-5)=0 and f(0)=5 f(0)=5 .\newlineWhich of the following is guaranteed by the Intermediate Value Theorem?\newlineChoose 11 answer:\newline(A) f(c)=2 f(c)=-2 for at least one c c between 5-5 and 00\newline(B) f(c)=2 f(c)=2 for at least one c c between 00 and 55\newline(C) f(c)=2 f(c)=2 for at least one c c between 5-5 and 00\newline(D) f(c)=2 f(c)=-2 for at least one c c between 00 and 55
  1. Intermediate Value Theorem: The Intermediate Value Theorem states that if a function ff is continuous on a closed interval [a,b][a, b] and NN is any number between f(a)f(a) and f(b)f(b), then there exists at least one cc in the interval [a,b][a, b] such that f(c)=Nf(c) = N.
  2. Given Function Values: We are given that f(5)=0f(-5) = 0 and f(0)=5f(0) = 5, which means that the function ff takes on the value 00 at x=5x = -5 and the value 55 at x=0x = 0.
  3. Determine Value of cc: We need to determine if there is a value cc in the interval [5,0][-5, 0] for which f(c)f(c) is either 2-2 or 22, according to the options provided.
  4. Option (A) Analysis: Option (A) suggests that f(c)=2f(c) = -2 for some cc between 5-5 and 00. However, since f(5)=0f(-5) = 0 and f(0)=5f(0) = 5, the value 2-2 is not between f(5)f(-5) and f(0)f(0). Therefore, the Intermediate Value Theorem does not guarantee a cc such that f(c)=2f(c) = -2 in the interval cc11.
  5. Option (B) Analysis: Option (B) suggests that f(c)=2f(c) = 2 for some cc between 00 and 55. This option is not relevant because our interval is [5,0][-5, 0], not [0,5][0, 5].
  6. Option (C) Analysis: Option (C) suggests that f(c)=2f(c) = 2 for some cc between 5-5 and 00. Since 22 is between f(5)=0f(-5) = 0 and f(0)=5f(0) = 5, the Intermediate Value Theorem guarantees that there is at least one cc in the interval [5,0][-5, 0] such that f(c)=2f(c) = 2.
  7. Option (D) Analysis: Option (D) suggests that f(c)=2f(c) = -2 for some cc between 00 and 55. Again, this option is not relevant because our interval is [5,0][-5, 0], not [0,5][0, 5].

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