QuestionFind the value of the piecewise function $f(x)$ at $x = -1$:
$$f(x)=\left\{\begin{array}{lll} 2 x+8 & \text { for } & -5 \leq x<-1 \\ -6 & \text { for } & x=-1 \\ x+5 & \text { for } & -1<x \leq 2 \end{array}\right.$$