3. Rotations
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Let's consider each of the transformations one at a time, beginning with the translation.
From the diagram, we can determine the coordinates of the image. X'(- 3,3) and Y'(4,- 3)
When a segment is rotated 90^(∘) counterclockwise about the origin, the coordinates of the image's endpoints will change in the following way. (a,b) → (- b,a) Using this rule with the endpoints of X'Y', we can find the endpoints of X''Y''.
Point | (a,b) | (- b,a) |
---|---|---|
X' | (- 3,3) | (- 3,- 3) |
Y' | (4,- 3) | (3,4) |
Knowing the endpoints of X''Y'', we can draw the image.
The final image X''Y'' will be the segment resulting from the translation followed by the rotation.