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Given f(x), find g(x) and h(x) such that f(x)=g(h(x)) and neither g(x) nor h(x) is solely x.f(x)= 5/-4x+3

User Gotnull
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1 Answer

3 votes

Given the value of f(x):


f(x)=(5)/(-4x+3)

If:


f(x)=g(h(x))

We have that:


g(h(x))=(5)/(-4x+3)

To decompose the function, we will look at the function and check if we see any part that might look like a simpler function.

One part that looks like a function is:


\Rightarrow-4x+3

Therefore, let this become our h(x):


h(x)=-4x+3

Hence, the composite function becomes:


g(h(x))=(5)/(h(x))

Replacing h(x) with x, we have:


g(x)=(5)/(x)

ANSWER:


\begin{gathered} g(x)=(5)/(x) \\ h(x)=-4x+3 \end{gathered}

User Mathew Paxinos
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