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question what is the image point of (-2,5) after the transformation $t_…

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question
what is the image point of (-2,5) after the transformation $t_{4,4}circ r_{y - axis}$?
answer attempt 1 out of 2
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Explanation:

Step1: 关于y轴作反射变换

点$(x,y)$关于$y$轴反射变换后的坐标为$(-x,y)$,所以点$(-2,5)$关于$y$轴反射变换后为$(2,5)$。

Step2: 进行平移变换

$T_{4,4}$表示向右平移$4$个单位,向上平移$4$个单位。点$(2,5)$向右平移$4$个单位,横坐标变为$2 + 4=6$;向上平移$4$个单位,纵坐标变为$5 + 4 = 9$。

Answer:

$(6,9)$