Rational Functions help?

a) Graph:

Code:

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f(x) = 2x+3
      -------
      x+4

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, labelling all zeroes, intercepts, asymptotes + give its domain and range

b) Now do the same for its inverse

c) Graph g(x)=

Code:

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x^3 - 8x
------------
(x+1)^2

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, labelling all zeroes, intercepts, asymptotes.

Does it have an inverse? Why or why not?


Thanks/Rep for whoever helps!