The exponential functions are
,
,
and
.
Graph the functions
,
,
and
on a common screen.

From the properties of the exponential functions,
\If
, then
is decreasing.
Observe the graph,
\The curves are approaching zero as
and all the functions having the base less than one.
All the curves passing through the point
.
All the curves are exponentially decreases.
\Graph:
\
The curves are approaching zero as
and all the functions having the base less than one.
All the curves are exponentially decreases.