Reflecting a Curve on a Graph

I have produced the following graph

I basically want to slide the curve down so that it starts at 0 rather than at 0.5932 and then reflect it.

Answer 1

[KALYAN ACHARJYA]

x=0:0.5:10;
y=exp(2.*x/3);
plot(y);

Set the scale range (values) as per requirements