Originally Posted by: duck7264
If I am playing an A minor pentatonic scale 5th fret, 5-8, 5-7, 5-7,5-7, 5-8, 5-8 and I slide down three frets that would put me at the A major pent. scale?[/quote]
Yes, as long as you use the same pattern. This fretboard pattern is the 1st "box shape" of the A minor pentatonic scale:

E ||---|---|---|---|-1-|---|---|-3-|---|---|
B ||---|---|---|---|-5-|---|---|-7-|---|---|
G ||---|---|---|---|-3-|---|-4-|---|---|---|
D ||---|---|---|---|-7-|---|-1-|---|---|---|
A ||---|---|---|---|-4-|---|-5-|---|---|---|
E ||---|---|---|---|-1-|---|---|-3-|---|---|

Slide that pattern down 3 frets and it becomes the 1st "box shape" of the A major pentatonic scale:

E ||---|-6-|---|---|-1-|---|---|---|---|---|
B ||---|-3-|---|---|-5-|---|---|---|---|---|
G ||---|-1-|---|-2-|---|---|---|---|---|---|
D ||---|-5-|---|-6-|---|---|---|---|---|---|
A ||---|-2-|---|-3-|---|---|---|---|---|---|
E ||---|-6-|---|---|-1-|---|---|---|---|---|

[QUOTE=duck7264]
If this theory is correct so that would mean that everywhere on the fret board falls under this rule

Yes, you've got the idea. :) Keep any given scale pattern consistent & you can move it around the fretboard at will changing keys.

I cover this topic in depth in this tutorial on pentatonic scales:

http://www.guitartricks.com/tutorial.php?input=296

This tutorial is all about covering the fretboard with major pentatonic boxes:

http://www.guitartricks.com/tutorial.php?input=722

This tutorial is all about covering the fretboard with minor pentatonic boxes:

http://www.guitartricks.com/tutorial.php?input=185

Hope this helps. Ask more if necessary. Have fun! :)