How to plot multiple curves in a figure?

Hello, I just wanted to ask how to plot a curve generated from a function multiple times in the same figure varying parameters each time i execute the function?? so that one can easily compare the effect of parameter variation. Plz help. Thnk you.

Answer 1

[Walter Roberson]

GeneratePlot(parameters1)
hold on
GeneratePlot(parameters2)
GeneratePlot(parameters3)