l-mayfield
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Let f(x) =1/x+4 and g(x)=-1/x. Find (f º g)(x) and (g º f)(x). Give the domain of each
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Composite Functions and their domains
- Thread starter l-mayfield
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l-mayfield said:Let f(x) =1/x+4 and g(x)=-1/x. Find (f º g)(x) and (g º f)(x). Give the domain of each
Domain of f(x) is every real number except -4 .
Domain of g(x) is every real number except 0 .
l-mayfield
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Thank you Aladdin but I also need the composite equation solved. Can you help me with that?
l-mayfield said:Thank you Aladdin but I also need the composite equation solved. Can you help me with that?
Let f(x) =1/x+4 and g(x)=-1/x. Find (f º g)(x) and (g º f)(x)
f(g(x)) = [1/(-1/x)] + 4 = -x + 4
g(f(x)) = -1/[((-1/x)+4)] = x / (1-4x)