Question

Express the function F(x)=1/(x+9) in the form g of h. If h(x)= x+9 , find the function g(x).

Answer 1

Given g o h(x) = g(h(x)) = 1/(x+9)
and h(x) = x+9

g(h(x)) = 1/(x+9)
g(x+9) = 1/(x+9)
g(y) = 1/y, or
g(x) = 1/x

Answer 2

Let f(x)=1/x+9 and h(x)= 1/ x-9 find