Answer
$f(x)=x+1$
$g(x)=2x$
$f\circ g(x)=2x+1$
$g\circ f(x)=2(x+1)=2x+2$
Work Step by Step
$f(x)=x+1$
$g(x)=2x$
$f\circ g(x)=f[g(x)]=g(x)+1=2x+1$
$g\circ f(x)=g[f(x)]=2\cdot f(x)=2(x+1)=2x+2$
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