Question

Let f(x)=x+1 and g(x)=5x evaluate the composition (f•g)(-1)

Answer 1

Answer:

$(f\circ g )(x) = -4$

Step-by-step explanation:

We have

$(f\circ g )(x) := f(g(x))$

Therefore,

$f(x)=x+1 \implies f(x)=g(x)+1$

So,

$(f\circ g )(x) = 5x + 1$

For $x = -1:$

$(f\circ g )(x) = 5(-1) + 1 = -5+1=-4$