Evaluate the given limits using the graph of
the function

[math] shown above.

Enter

** INF ** for

[math],

** -INF **
for

[math], or

** DNE ** if the limit does not exist,
but is neither

[math] nor

[math].

If you are having a hard time seeing the picture clearly, click
on the picture. It will expand to a larger picture on its own page so
that you can inspect it more clearly.

a) [math] =

b) [math] =

c) [math] =

**Solution:**