Webassign Math 241

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Sketch the graph of the given function. Check your sketch using technology. HINT [See Example 1.]
f(x) = x2 + 2x + 1
 
Correct: Your answer is correct.

(a) Indicate the x- and y-intercepts. (If an answer does not exist, enter DNE.)
x-intercept    
(xy) =
  Correct: Your answer is correct. 
y-intercept    
(xy) =
  Correct: Your answer is correct. 

(b) Indicate any extrema. (If an answer does not exist, enter DNE.)
    Correct: Your answer is correct.     
(xy) =
  Correct: Your answer is correct. 

(c) Indicate any points of inflection. (If an answer does not exist, enter DNE.)
(xy) = 
  Correct: Your answer is correct. 


(d) Indicate the behavior near points where the function is not defined.
y  + as x  0
y  0 as x  −1
    
y  + as x  −1
y  + as x  1
Correct: Your answer is correct.

(e) Indicate the behavior at infinity.
y  − as x  ±
y  − as x  −y  + as x  +
    
y  + as x  −y  − as x  +
y  −1 as x  ±
y  + as x  ±
Correct: Your answer is correct.

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Correct: Your answer is correct.
(a) Indicate the x- and y-intercepts. (Order your answers from smallest to largest x. If an answer does not exist, enter DNE.)
x-intercept    
(xy) =
  Incorrect: Your answer is incorrect. 
x-intercept    
(xy) =
  Correct: Your answer is correct. 
x-intercept    
(xy) =
  Incorrect: Your answer is incorrect. 
y-intercept    
(xy) =
  Correct: Your answer is correct. 

(b) Indicate any extrema. (Order your answers from smallest to largest x. If an answer does not exist, enter DNE.)
    Incorrect: Your answer is incorrect.     
(xy) =
  Incorrect: Your answer is incorrect. 
    Incorrect: Your answer is incorrect.     
(xy) =
  Incorrect: Your answer is incorrect. 
        
(xy) =
  
        
(xy) =
  

(c) Indicate any points of inflection. (If an answer does not exist, enter DNE.)
(xy) = 
  Correct: Your answer is correct. 


(d) Indicate the behavior near points where the function is not defined.
y  + as x  0
y  0 as x  ±6
    
y  + as x  ±6
y  + as x  ±3
Correct: Your answer is correct.

(e) Indicate the behavior at infinity.
y  + as x  ±
y  − as x  −y  + as x  +
    
y  − as x  ±
y  + as x  −y  − as x  +
Correct: Your answer is correct.

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Correct: Your answer is correct.
(a) Indicate the x- and y-intercepts. (Order your answers from smallest to largest x. If an answer does not exist, enter DNE.)
x-intercept    
(xy) =
  Incorrect: Your answer is incorrect. 
x-intercept    
(xy) =
  Correct: Your answer is correct. 
x-intercept    
(xy) =
  Incorrect: Your answer is incorrect. 
y-intercept    
(xy) =
  Incorrect: Your answer is incorrect. 

(b) Indicate any extrema. (Order your answers from smallest to largest x. If an answer does not exist, enter DNE.)
    Correct: Your answer is correct.     
(xy) =
  Correct: Your answer is correct. 
    Correct: Your answer is correct.     
(xy) =
  Correct: Your answer is correct. 

(c) Indicate any points of inflection. (If an answer does not exist, enter DNE.)
(xy) = 
  Incorrect: Your answer is incorrect. 


(d) Indicate the behavior near points where the function is not defined.
y  + as x  0
y  0 as x  ±3
    
y  + as x  ±3
y  + as x  ±1
Correct: Your answer is correct.

(e) Indicate the behavior at infinity.
y  + as x  ±
y  − as x  −y  + as x  +
    
y  − as x  ±
y  + as x  −y  − as x  +
Incorrect: Your answer is incorrect.

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(a) Indicate the x- and y-intercepts. (If an answer does not exist, enter DNE.)
x-intercept    
(xy) =
  
y-intercept    
(xy) =
  

(b) Indicate any extrema. (Order your answers from smallest to largest x. If an answer does not exist, enter DNE.)
        
(xy) =
  
        
(xy) =
  

(c) Indicate any points of inflection. (If an answer does not exist, enter DNE.)
(xy) = 
  


(d) Indicate the behavior near points where the function is not defined.
y  + as x  0
y  0 as x  0
    
y  − as x  0
y  + as x  1

(e) Indicate the behavior at infinity.
y  − as x  ±
y  − as x  −y  + as x  +
    
y  1 as x  ±
y  + as x  −y  − as x  +
y  + as x  ±

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(a) Indicate the t- and y-intercepts. (If an answer does not exist, enter DNE.)
t-intercept    
(ty) =
  
y-intercept    
(ty) =
  

(b) Indicate any extrema. (Order your answers from smallest to largest t. If an answer does not exist, enter DNE.)
        
(ty) =
  
        
(ty) =
  
        
(ty) =
  

(c) Indicate any points of inflection. (If an answer does not exist, enter DNE.)
(ty) = 
  


(d) Indicate the behavior near points where the function is not defined.
y  + as t  0
y  − as t  −1+ and as t  1y  + as t  −1 and as t  1+.
    
y  + as t  −2+ and as t  2+y  − as t  −2 and as t  2.
y  + as t  −1+ and as t  1+y  − as t  −1 and as t  1.
y  − as t  −2+ and as t  2+y   as t  −2 and as t  2.

(e) Indicate the behavior at infinity.
y  + as t  ±
y  − as t  −y  + as t  +
    
y  − as t  ±
y  + as t  −y  − as t  +

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 Correct: Your answer is correct.C

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 Correct: Your answer is correct.C

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 Incorrect: Your answer is incorrect.C

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C

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 Correct: Your answer is correct.C

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 Incorrect: Your answer is incorrect.C

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C

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 Incorrect: Your answer is incorrect.C

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 Correct: Your answer is correct.C

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 Incorrect: Your answer is incorrect.

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(b) Use the answer to part (a) to estimate the online social group membership midway through 2008.
M(3.5) = [removed] million members

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