I did graph the inequality.

Is see the y intercept at 5 and what looks like opposite slopes. I replaced a with 5. The notation of question e):

$\displaystyle f'(x)$ for the $\displaystyle f(x)$ in d)

is a little bit confusing to me. If I am correct the $\displaystyle f'(x)=-1$ and $\displaystyle f'(x)=1$ for the function in d)

I am trying to determine how to graph:

$\displaystyle f'(x)$ for the $\displaystyle f(x)$ in d)

Thanks in advance...