Given that $f(x)=sqrtx$ and $g(x)=4x+2$ , how do you find $(gof)(x)$ ?

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Answer 1 · 2017-08-27T09:50:31

$4sqrtx+2$

$"substitute "x=sqrtx" into "g(x)$

$(g@f)(x)=g(f(x))$

$color(white)((g@f)(x))=g(sqrtx)$

$color(white)((g@f)(x))=4sqrtx+2$

Given that f(x)=sqrtxf(x)=sqrtx and g(x)=4x+2g(x)=4x+2, how do you find (gof)(x)(gof)(x)?