78 Copy/Paste MathJax test
For the following exercises, for each pair of functions, find a.
(f∘g)(x)
and b. (g∘f)(x)
Simplify the results. Find the domain of each of the results.
42.
f(x)=3x,g(x)=x+5
43.
f(x)=x+4,g(x)=4x−1
44.
f(x)=2x+4,g(x)=x2−2
45.
f(x)=x2+7,g(x)=x2−3
46.
f(x)=x−−√,g(x)=x+9
47.
f(x)=32x+1,g(x)=2x
48.
f(x)=|x+1|,g(x)=x2+x−4