Answer:
[tex](f\circ g )(x) = -4[/tex]
Step-by-step explanation:
We have
[tex](f\circ g )(x) := f(g(x))[/tex]
Therefore,
[tex]f(x)=x+1 \implies f(x)=g(x)+1[/tex]
So,
[tex](f\circ g )(x) = 5x + 1[/tex]
For [tex]x = -1:[/tex]
[tex](f\circ g )(x) = 5(-1) + 1 = -5+1=-4[/tex]
