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Description:
Which of the following transformations is equivalent to a rotation of 180° about the origin?
Transcript
- 00:03
Okay C t s spire Math people Here we go
- 00:06
Another question for you Which of the following transformations is
- 00:09
equivalent to a rotation of one hundred eighty degrees about
- 00:12
the origin Think Trying to figure out this problem in
- 00:17
the abstract left scratching our noodles here which was kind
Full Transcript
- 00:21
of a weird feeling So we drew some quick examples
- 00:24
you know check him out Well we started with a
- 00:26
square in the first quadrant which is shown in the
- 00:29
black area here after rotating this square hundred eighty degrees
- 00:32
about the origin to obtain the red square No relation
- 00:35
of moscow We noticed that the corner of the black
- 00:38
square with coordinates for four corresponds to the corner of
- 00:41
the red square recording It's negative for negative for well
- 00:45
the two squares are mirror images of each other relative
- 00:49
to the line we drew in blue which is the
- 00:51
line Why equals negative acts right That that line right
- 00:54
there y equals negative act well reflecting the black square
- 00:57
across the y equals negative X line produces the red
- 01:01
square in the same position So this reflection is equivalent
- 01:04
to our wrote patient So that's it Great Now please
- 01:08
excuse us while we wash the marondera off our kansas
- 01:12
We circled the for being right
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