How do you find $(f o g) (x)$ $(fog)(x)$ given $f (x) = - 9 x + 3$ $f(x)=-9x+3$ and $g (x) = x^{4}$ $g(x)=x^4$ ?

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Answer 1 · 2016-09-20T01:28:34

$(f o g) (x) = - 9 x^{4} + 3$ $(fog)(x) =-9x^4+3$

$(f o g) (x) \equiv f [g (x)]$ $(fog)(x) -= f[g(x)]$

Here $f (x) = - 9 x + 3$ $f(x) = -9x+3$ and $g (x) = x^{4}$ $g(x) = x^4$

Hence: $f [g (x)]$ $f[g(x)]$ = $f (x^{4})$ $f(x^4)$

$= - 9 x^{4} + 3$ $=-9x^4+3$

How do you find (fog)(x)(fog)(x)(fog)(x) given f(x)=-9x+3f(x)=−9x+3f(x)=-9x+3 and g(x)=x^4g(x)=x4g(x)=x^4?