If Iam have more than two function let me said five function ,how can plot it in same figure?

If Iam have more than two function let me said five function ,how can plot it in same figure? y1=function y2=function y3=function y4=function y5=function x=1:1:40 how plot its in same figure?

[Azzi Abdelmalek]

Look at http://www.mathworks.com/matlabcentral/answers/106331#comment_180250