Question 1041650
Think through the situation logically.  Know the Distance Formula!


The center for your given circle is  (1,2).  The point outside(?) the circle is given as  (-2,-2).  Radius size for your circle is 2.  


You are looking for two distances.  One of them you already know and other of them you can calculate.


The point on the circle which is smallest distance from given point to the circle IS ON THE LINE which contains  (-2,-2)  and center(1,2).  You are not asked to find this point, but you are asked for the size of the difference of distances.


Think carefully about all of that....



You are looking for THIS value:
<pre>
----------------------------------
Distance from (-2,-2) to (1,2)   |
Minus                            |
4.                               |
----------------------------------
</pre>

That's it!