Question

Dada as funções f(x)=5x-8 e h(x)=2/x-3
determine
h(f (x) )

me ajuda obrigada!

Answer 1

f(x)=5x-8 e h(x)=2/x-3
h(f(x)) = h(5x-8) =      2      
                             5x-8 - 3

h(f(x)) =     2     
             5x - 11

Answer 2

$f(x)=5x-8$

$h(x)=\dfrac{2}{x-3}$

$h[f(x)]=h(5x-8)$

$h[f(x)]=\dfrac{2}{5x-8-3}$

$h[f(x)]=\dfrac{2}{5x-11}$