Looking at the graph of this exponential function, we can see the following behaviors:
When the value of x increases, the value of f(x) decreases, approaching the value y = 1 when x tends to positive infinity.
When the value of x decreases, the value of f(x) increases, going towards positive infinity.
Therefore the answers are:
As x decreases without bound, the graph of f(x):
increases without bound
As x increases without bound, the graph of f(x):
approaches y=1