Mathematics
Senior High
Resolved
一直算錯
隨堂練習
(-4,-2)
求點A(2,4)對於直線L:x+y=0的對稱點坐標。
a
(a,b)
y-4:X-2 →X-y=-2
2ta 4th
512) = (1-1
xty=0
-1-45-2
74-(1-1)
a = o
A
Co-6
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