The points on the graph are
,
.
The horizontal asymptote of the exponential function is
.
The form of exponenetial equation with a horizontal asymptote
is
.
Rewrite the above exponenetial equation as
.
The point
is on the graph.
Substitute
,
, and
in
.

The point
on the graph.
Substitute
,
,
and
in
.


Substitute
and
in
.


The exponenetial equation is
.
The exponenetial equation is
.