Fixed points of Quadratic Functions

label Calculus
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 Linear functions (with the exception of f(x) = x) can have at most one fixed point. Quadratic functions can have at most two. Find the fixed points of the function g(x) = x2 − 20.

 (Enter your answers as a comma-separated list.)
Apr 29th, 2015

g(x) = x2 − 20.

    x2 − 20= 0

 x2 = 20

X = 20^(1/2)

     X =  +4.47,  -4.47 

 two fixed points  are = +4.47 ,  -4.47

Apr 29th, 2015

The homework submitting program says that answer incorrect. 

Apr 29th, 2015

 why .. Its a 100% correct  ans ..

 I showed how to calculate.

 plz try once or any round figure is required in ans.

  

Apr 29th, 2015

if ans is in round figure up to one decimal place then ans will be 

 roud(4.47)  =4.5  

 therefor you can use  ans  +4.5 , -4.5 

Apr 29th, 2015

I hope it will be helpful for u 

Apr 29th, 2015

Thank you! 


Apr 29th, 2015

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Apr 29th, 2015
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Apr 29th, 2015
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