Rotational Symmetry?

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Rotational Symmetry?

Does anyone know if y=x^2-8x has rotational symmetry? I would say not. Based on graphs and calculations I have made. But a friend disagress. Any idea?

2006-09-28 11:05:52 · 2 answers · asked by n9qs 3 in Science & Mathematics ➔ Mathematics

2 answers

The graph I make shows a rotational symmetry about the x axis of 2. Since at any point (x,y) --> (-x,-y) by 180 rotation about the x axis.

IMHO

2006-09-28 11:35:57 · answer #1 · answered by DrSean 4 · 0⤊ 0⤋

According to the definition

http://www.adrianbruce.com/Symmetry/10.htm

no parabola possesses this quality.

2006-09-28 13:09:27 · answer #2 · answered by Nancy F 2 · 0⤊ 0⤋