Here are some graphs for you.
Here is a link to download this Free software "Graph"
It is a great program.
Graph
P.s It isn't really clear what the function is for the 1st one some a made my best guess.
I hope this helps
Been a while since I graphed. I'm not able to post the graphs I got so maybe someone can give me a general idea of what it would look like so I can see what I have on paper is correct.
y=2-arccos(-1/2x+1)
y=-arctan(x-1)- π/2
Thanks in advance.