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