The graph of f is given below:

Consider the cases:

\begin{array}{lll}
(1)\ x=-4 &
(2)\ x=-2 &
(3)\ x=0 \\
(4)\ x=2 &
(5)\ x=4 \\
\end{array}

Consider the cases:

Part (a) For each case, state whether or not

(Enter "y" for yes, "n" for no.)

(1)

(4)

Part (b) For each case, determine if

(Enter "r", "l", or "n", respectively below. In the case of continuity at a point from both sides, enter "b".)

(1)

(4)

You can earn partial credit on this problem.