Forgive me for not using the "Maple Math" and "Maple Plot" commands. I tried, but it says everything that I enter is an invalid expression so I'm just entering it as text...
I define two functions, they plot as expected:
f(x) := sin(x);
g(x) := 2*x;
plot( f(x) );
plot( g(x) );
Now I want to plot the composition:
plot( f(g(x)) );