The graph of $f$ is given below:



Consider the cases:
$\begin{array}{lll} (1)\ x=-4 & (2)\ x=-2 & (3)\ x=0 \\ (4)\ x=2 & (5)\ x=4 \\ \end{array}$

Part (a) For each case, state whether or not $f$ is continuous at the given point:
(Enter "y" for yes, "n" for no.)

(1)       (2)       (3)
(4)       (5)

Part (b) For each case, determine if $f$ is continuous from the right, or from the left, or neither.
(Enter "r", "l", or "n", respectively below. In the case of continuity at a point from both sides, enter "b".)

(1)       (2)       (3)
(4)       (5)