00:01
Are asked to find a formula that tells us that a given point xy, so a variable point xy, is a distance of r units where r is positive from a fixed point that we're calling c with the coordinates hk.
00:21
So basically we have this point xy and this point xy is a fixed distance are from a point hk and this point changes.
00:37
So this point x, y could be here, it could be here, it could be here, but no matter where that point moves, that r is always going to be the same.
00:47
So, and we're asked to find a formula for that point.
00:51
So we're going to use the distance formula.
00:52
In this case, our distance is r.
00:55
So we're going to use r.
00:57
Let's go ahead and do it like this...