Well, for starters, this is more of a question for you than it is for me yet here's something to give you an idea.... I think don't let it get personal and leave your life stories at the door. Also, don't ask yourself, "how can this be done or worked out,", ask the people and if they're biased it's hard to tell so just hope that they leave off topic, etc... Ideas and or comments. The best I can give you.
1/7-9/7n+6/7
1-9/7n
that is the extended form and is simplified
Hope it help! :)
Domain: The values that X could take, so domain = (-∞,+∞)
Range: The values that the dependant variable, f(x), could take. Since we can't get negative numbers, it'd be range = [0,+∞)
X and Y intercepts: The points in which you touch the axis. On this case the only one is the point (0,0).
Increasing and decreasing refers to the region where the function increases or decreases. It increases on (0,∞), and decreases on (-∞,0).
Sorry, but I don't understand what you mean with "transformations", at least the way you're written it. If you give me a bit more of info, I'll do my best to help :)
