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Mathematics 21 Online
OpenStudy (billyjean):

Find the domain and range of g(x)=x+8x

OpenStudy (eliesaab):

Is f multiplied with g or composed with g?

OpenStudy (eliesaab):

That is easy \[ \frac 1 x (x^2+5x) \]

OpenStudy (eliesaab):

Can you simplify it now?

OpenStudy (eliesaab):

yes

OpenStudy (eliesaab):

unless x=0

OpenStudy (eliesaab):

in this case, it is not defined

OpenStudy (eliesaab):

because f is not defined at x=0

OpenStudy (eliesaab):

It is the whole real line except x=5

OpenStudy (eliesaab):

because to get 5, you should give to x=0

OpenStudy (eliesaab):

No

OpenStudy (eliesaab):

Domain= all real numbers except zero Range = all real numbers except the number 5

OpenStudy (eliesaab):

Ask it in a different problem and tag me

OpenStudy (billyjean):

I have one more question is that okay or no

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