Y=f(g(x)) and 
our aim is to express f as a function of g, where g is a function itself, of x.
in the expression tex]y= \frac{8}{x^{2}}+4 [/tex] we may notice 2 functions:
the squaring x function, which may well be our g:
and the "8 divided by x, +4" function:
check :
because whatever the input of f is, it divides it from 8, and adds 4 to the division.
since,,
Answer:
our aim is to express f as a function of g, where g is a function itself, of x.
in the expression tex]y= \frac{8}{x^{2}}+4 [/tex] we may notice 2 functions:
the squaring x function, which may well be our g:
and the "8 divided by x, +4" function:
check :
because whatever the input of f is, it divides it from 8, and adds 4 to the division.
since,
Answer: