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Mathhelp346
Group Title
HELP PLEASE!!!:
f(x)=3x4
g(x)=x^2
1.(f o g)(2)
2.(f o f)(2)
f(x)=2x
g(x)=x^2+2
h(x)=4x+3
1.(h o f)o g
 one year ago
 one year ago
Mathhelp346 Group Title
HELP PLEASE!!!: f(x)=3x4 g(x)=x^2 1.(f o g)(2) 2.(f o f)(2) f(x)=2x g(x)=x^2+2 h(x)=4x+3 1.(h o f)o g
 one year ago
 one year ago

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Mathhelp346 Group TitleBest ResponseYou've already chosen the best response.0
for the first part, what does the 2 do? i know how to solve (f o g)(x)
 one year ago

micahwood50 Group TitleBest ResponseYou've already chosen the best response.1
(f o f)(2) is basically saying f( f(2) ), in other words, in 3x4, replace x with ( 3x  4 ) so you get f o f(2) = 3( 3(2)  4 )  4 then simplify.
 one year ago

Mathhelp346 Group TitleBest ResponseYou've already chosen the best response.0
and how would i do the second part?
 one year ago

Mathhelp346 Group TitleBest ResponseYou've already chosen the best response.0
like h(f(x)(g(x))? but then how do i solve it
 one year ago

micahwood50 Group TitleBest ResponseYou've already chosen the best response.1
(h o f)(x) = h(f(x)) so (h o f)o g = h(f(x)) o g = h( f ( g(x) ) ) f(g(x)) = 2(x^2+2) so h ( f ( g ( x ) ) ) = 4(2(x^2+2) )+3 Is this clear enough?
 one year ago

Mathhelp346 Group TitleBest ResponseYou've already chosen the best response.0
yes thank you
 one year ago

micahwood50 Group TitleBest ResponseYou've already chosen the best response.1
Glad I helped.
 one year ago

Mathhelp346 Group TitleBest ResponseYou've already chosen the best response.0
wait but if f o g would nt it be h(f(x)(g(x))
 one year ago

Mathhelp346 Group TitleBest ResponseYou've already chosen the best response.0
h o f is h(f(x)) and then there's o g so wouldnt it be h(f(x)(g(x))
 one year ago

micahwood50 Group TitleBest ResponseYou've already chosen the best response.1
Well, h o f o g = h( f( g(x) ) ) Basically (h o f) o g is same since h and f go first anyway.
 one year ago

Mathhelp346 Group TitleBest ResponseYou've already chosen the best response.0
ah ok thanks
 one year ago
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