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 Feb 21, 2018
 #1
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1.   f(x)  =  [ x^2  + 4x - 12] /  [ x - 2]

 

Factor the numerator

 

f (x)  = [ (x + 6) ( x - 2)]  / (x - 2)          "cancel" the (x - 2)  factors

 

f(x) = ( x + 6 )  

 

The hole in the graph will occur  at  f(2)  =  2 + 6  = 8 ⇒    ( 2, 8)

 

 

2. The graph at the top left is correct

 

3. Vertical asymptote    x  = 7

    Horizontal asymptote   y  = 2

 

 

 

cool cool cool

 Feb 21, 2018

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