For the given beam with constant EI$,$ answer the questions:

$($a$)$ Determine the reactions, Rax, Ray, and Rcy$.$

$($b$)$ Draw the FBD$,$ SFD$,$ and BMD in the given space below $($graphical method$)$

$($c$)$ Write the equation of bending moment, M$($x$),$ for $6$