a) Translate the polygon so that point A is at the origin (0,0). How far did the polygon move from its [b]original position[/b]? How would you write this change in position so that someone could reproduce it without a picture?[br]b) Translate the polygon so that point A is at the point (1,3). How far did the polygon move from [b]the last [/b] position? How would you write this change in position so that someone could reproduce it without a picture?
a) translate left by 1 and down by 3 (ie, shift in x by -1 and shift in y by -3 [b]for every point[/b])[br]Did you come up with a good way to write or verbalize this translation? If not, give it a shot before you keep reading.[br][br]b) translate up by 3 and right by 1 (ie, shift in y by 3 and shift in x by 1 [b]for every point[/b])[br] If you are confused, go read the [b]bold print [/b]in the question again.[br][br]You could also use an idea similar to a slope (change in y divided by change in x). See the black ray (that's the line segment with an arrow on one side)? This line represents the total translation of the shape, both in x and in y. Modern animation uses vectors (a way to represent that ray thingy) to define translations, both in 2D and in 3D.