ggabby
can you explain to me very explicitly how to do this problem and others on how to find the domain of f and g with f(x)=3x^2+2 and g(x)=2x thanks



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baldymcgee6
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Do you mean f of g as in f(g(x))?

ggabby
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yea I think

baldymcgee6
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or each function separately?

baldymcgee6
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I'm not sure what you are specifically asking...?

ggabby
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f(g(x))

baldymcgee6
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okay, so do you know what f(g(x)) = ?

baldymcgee6
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No, but similar, think of f(g(x) as: anytime there is an "x" in the function f(x), replace the x with g(x), which is 2x

baldymcgee6
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so its really: f(g(x) = 3(g(x))^2 + 2

ggabby
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ohh ok

baldymcgee6
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which is specifically: f(g(x)) = 3(2x)^2 +2

ggabby
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ok thanks first time using this site

baldymcgee6
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ok, feel free to give me a medal by choosing "best response". :)

baldymcgee6
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awesome, let me know if you need more help.

ggabby
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ok ill post something maybe