Is the function f increasing or decreasing in this direction at the given point?

It depends what function's graph you are talking about. If (at that point) the function is positive, then it is increasing, and if it is negative, then it is decreasing. Be careful, though. I'm not talking about whether or not the whole function is positive or negative, just that specific part of the graph. If you would like a more specific answer, please include which part of what function's graph you are talking about.

Answer8.0m;

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j