Asked by Carl

Show that the compositions below do not result in the same point.

Point A (x,y)

90 degrees clockwise
reflection around the y-axis
for point (-4,-3)

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Answered by Reiny
Point A (x,y)

90 degrees clockwise ----> A'(y,-x)
reflection around the y-axis ----> A''(-y,-x)

for point (-4,-3)
90 degrees clockwise ----> (-3,4)
reflection around the y-axis ----> (3,4)

Is that what you are after?
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