So maybe if one axis is a reference, then both have to be....
How about making both arrays the same size:
$y = [ 10 .. 15 ];
$x = [ (10) x $#$y ];
...
With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".