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katrin2010 [14]
3 years ago
10

Given the functions, f(x)=x^3+2 and g(x)=x-9, perform the indicated operation. When applicable, state the domain restriction. (f

/g)(x)
Mathematics
1 answer:
tiny-mole [99]3 years ago
7 0
The domain of (f/g)(x) considers the domains of g(x) and f(x) and makes sure that g(x)≠0

because (f/g)(x)=f(x)/g(x)
and division by 0 is not allowed

the domains of f(x) and g(x) are all real numbers
now find what make g(x)=0
0=x-9
9=x

9 is restricted from the domain
domain is all real numbers except 9


so
(\frac{f}{g})(x)=\frac{f(x)}{g(x)}=
\frac{x^3+2}{x-9}
the domain is all real numbers except for 9
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