QUESTION IMAGE
Question
find (f ∘ g)(x) and (g ∘ f)(x) and graph each of these functions.
f(x) = -8x
g(x) = cot x
find (f ∘ g)(x).
(f ∘ g)(x) = \square
Step1: Define composite function
Recall that $(f \circ g)(x) = f(g(x))$.
Step2: Substitute $g(x)$ into $f(x)$
Replace $x$ in $f(x) = -8x$ with $g(x) = \cot x$.
$$(f \circ g)(x) = -8 \cdot g(x)$$
Step3: Final substitution
Substitute $g(x)=\cot x$ into the expression.
$$(f \circ g)(x) = -8\cot x$$
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$\boldsymbol{-8\cot x}$