Let $\backslash ($ h $\backslash )$ be a continuous function over the interval $\backslash ([-5,10]\backslash )$ with derivative given by $\backslash ($ h$^\{\backslash$prime$\}\backslash )$ consisting of two line segments and two semicircles, as shown in the graph.

Part A: For what intervals is the graph of $\backslash ($ h $\backslash )$ increasing? Decreasing? Justify your answer. $(10$ points$)$

Part B: For what value$($s$)$ of $\backslash ($ x $\backslash )$ does $\backslash ($ h $\backslash )$ have relative extrema? Justify your answer. $(5$ points$)$

Part C: For what intervals is the graph of $\backslash ($ h $\backslash )$ concave up$?$ Concave down? Justify your answer. $(10$ points$)$

Part D: For what value$($s$)$ of $\backslash ($ x $\backslash )$ does $\backslash ($ h $\backslash )$ have a point of inflection? Justify your answer. $(5$ points$)$