Let $f$ be defined by

(a) Find (in terms of $m$) $\displaystyle{\lim_{x\rightarrow -1^{+}} f(x)}$
Limit =

(b) Find (in terms of $m$) $\displaystyle{\lim_{x\rightarrow -1^{-}} f(x)}$
Limit =

(c) Find the value of $m$ so that
$m$ =