Given f(x)=2−8x−−−−−√fx=2−8x and g(x)=−9xgx=−9x, find the following:

a. (g∘f)(x)g∘fx

Enclose numerators and denominators in parentheses. For example, (a−b)/(1+n).a−b/1+n.

(g∘f)(x)=g∘fx=

b. the domain of (g∘f)(x)g∘fx in interval notation.