Answer:
-2
Step-by-step explanation:
To evaluate a function, replace the variable by the function argument and simplify.
Application
[tex]f(x)=\dfrac{x}{4}\\\\f(-8)=\dfrac{-8}{4}\qquad\text{replace x with -8}\\\\\boxed{f(-8)=-2}\qquad\text{simplify}[/tex]
