plot in range under math script

[rina]

Hi,

I have problem to plot few lines in one graph. I'm using math script to plot the graphs. 

The problems are:

1. how to convert the numerical (scalar) into array? 

2.  how to plot y in range of a and b? it couldn't be plotted since y is not related with x. As you can see y1 can be plotted.

Pls find .vi file. Many thanks in advance !!

[rina]

I really hope someone can help me.. 

I post one more .vi file which the output of y properties was changed into 1D SGL.. but still cant be plotted...