clear
clc

%// Create/plot data
x = -10:10;
y1 = x.^2;
y2 = 2*x-10;

plot(x,y1,'--r',x,y2,'-*k')

%// Add some text
t1 = text(-6,10,'Curve 1');
t2 = text(6,-4,'Curve 2');

%// Find text objects. Of course normally you would not know beforehand
%their position

hText = findobj('Type','Text');

%// Get their position
Text1Pos = get(hText(1),'Position')
Text2Pos = get(hText(2),'Position')

Text1Pos =

     6    -4     0


Text2Pos =

    -6    10     0