Someone

var tile:MovieClip;

function onEnterFrame() {
	import flash.geom.Transform;
	import flash.geom.Matrix;
	
	
	var dy = dot1._y - dot2._y;
	var dx = dot1._x - dot2._x;
	var angle = -dy / Math.sqrt(dx^2 + dy^2);
	var m:Matrix = tile.transform.matrix;
	tile._width = dx;
	tile.transform.matrix = new Matrix(m.a, angle/Math.PI, m.c, m.d, m.tx, m.ty);
	trace(tile.transform.matrix);	
}