A Composition function is just one function inserted as the “x” of another function.
Typically the notation for a composition function will look like this:
But you can also write a composition function like this:
and it means the same thing. Everywhere you see an “x” in the f(x) equation, instead of inserting a single number for that x, you are now going to insert the entire g(x) equation.
To Watch a Video of an example composition function worked out, click here.
