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Nitella [24]
3 years ago
13

If P = (-1,-1), find the image

Mathematics
1 answer:
yawa3891 [41]3 years ago
6 0
<h3>Answer:     (-1, 1)</h3>

=========================================================

Explanation:

The rotation rule we use is (x,y) \to (y, -x)

The x and y coordinates step places, then the second coordinate (after the swap) changes in sign from positive to negative, or vice versa.

For example, the point (5,7) rotates to (7, -5). As another example, (2,-1) becomes (-1, -2). As another example, (-9,4) becomes (4,9).

----------------------------------

In our case, the point (-1,-1) will rotate to (-1, 1)

Note: A 270 degree counterclockwise rotation about the origin is the same as a 90 degree clockwise rotation about the origin. Refer to the diagram below.

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