When you hover the dot over the black swuare, it turns green so you can see where it is. You can drag the point by holding your mouse and selecting it, just like you drag applications on your desktop. There is a gragh in the bg so you can see exact squares. The Green square is the new square, taking the point x and point y, and then multiplying that by the scale factor. Take the scale factor and you can use the slider below the text to make the object bigger, and do some other weird stuff with it. Have fun!
MATH I did all of this myself, no credits needed.
