Answer the following questions using the following graph darr.

a$.$ Among the given values of $"$a$,"$ for which does $\underset{xa}{lim}q(x)$ exist?

b$.$ Among the given values of $"$m$,"$ for which is $q(x)$ continuous at $x=m$

c$.$ a$.$ Among the given values of $"$s$,"$ for which does

$\underset{x{s}^{+}}{lim}q(x)=q(s)?$

d$.$ Evaluate the following:

i$.\underset{x-1}{lim}q(x)$

ii$.f(-1)=$