Exploring Translations 4

Question 4
a) Describe how the object is translated.[br]b) Is the image congruent to the pre-image?
Question 4 and a little bit more
Now click the line [icon]http://www.geogebra.org/images/ggb/toolbar/mode_join.png[/icon] tool. Draw a line connecting point A on the preimage to its corresponding point A on the image by clicking both points. If you make a mistake, first select the select [icon]/images/ggb/toolbar/mode_move.png[/icon] tool and then click the reset [img]http://i.imgur.com/cCmT43v.png[/img] button in the top right (it's a bit finicky, so you may have to click it more than once to get it to work).[br][br]What is the slope of the line?
Question 4 and even more
Connect the rest of the points on the preimage to their corresponding points on the image (B to B, C to C, and D to D) using the line [icon]/images/ggb/toolbar/mode_join.png[/icon] tool. What are the slopes of the rest of the lines?
What did you notice about the lines? Do they ever intersect? There's a name for these kind of lines... Pay attention to the slopes, that will be important later.
[i][url=https://www.geogebra.org/book/title/id/2660003#material/2664657]Go on to Exploring Translations 5.[/url][/i]
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Information: Exploring Translations 4