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What is the inverse of f(x)=(x+6)^2  for x≥–6 where function g is the inverse of function f?

 

 

g(x)=[√x]−6, x≥0

 

g(x)=[√x-6], x≥6

 

g(x)=[√x+6], x≥−6

 

g(x)=[√x] +6, x≥0

 Oct 24, 2018
 #1
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f(x)  = (x + 6)^2  for x  ≥ 6

 

For  f(x)......write y

 

y = ( x + 6)^2      take the square root of both sides

 

√y =  x + 6     subtract 6 from both sides and "swap"  x and y

 

√x  - 6   =   y      for y, write g(x)

 

So

 

g(x)  =  √x - 6   

 

Since  the first point on the original graph  is  (-6,0)

The first point on this graph  is  (0,-6)

So    x ≥ 0

 

 

cool cool cool

 Oct 24, 2018

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