Op-Amp: voltage-follower question

[WalkingInMud]

Op-Amp: "voltage-follower" question

Hi all, ...

If a simple op-amp circuit is described as:
-> being in a "voltage-follower with-gain" configuration, and
-> having a resistor ratio of 9:1

...Where are the two resistors positioned with respect to the op-amp circuit element, and
...How, if at all, doe they come into play when calculating the configuration's "closed-loop gain"?

Thanks heaps!

 

[waht]

You might be interested in this:

http://www.st-andrews.ac.uk/~www_pa/Scots_Guide/first11/part10/page1.html

Can you derive a formula for Vout in terms of Vin?