In order to create the table of points, let's choose some values for x and calculate the corresponding value of y:

So we have the points (1/2, 4), (1, 3), (2, 2), (4, 1).
Graphing these points and the corresponding curve, we have:
The x-intercept is at x = 8.
As x tends to 0, f(x) tends to infinity.
As x tends to infinity, f(x) tends to minus infinity.
The asymptote is a vertical line at x = 0.