Suppose point A(-1,m)is on the grap
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Suppose point A(-1,m)is on the graph of the function y=−
2 |
x |
![Suppose point A(-1,m)is on the grap](/uploads/image/z/18789669-45-9.jpg?t=Suppose%26nbsp%3Bpoint%26nbsp%3BA%EF%BC%88-1%EF%BC%8Cm%EF%BC%89is%26nbsp%3Bon%26nbsp%3Bthe%26nbsp%3Bgrap)
将x=-1代入双曲线解析式得:y=-
2
−1=2,
∴A(-1,2),
∴B(-1,-2),C(1,-2),D(1,2),
则四边形ABCD的面积S=2×4=8.
故答案为:8
2
−1=2,
∴A(-1,2),
∴B(-1,-2),C(1,-2),D(1,2),
则四边形ABCD的面积S=2×4=8.
故答案为:8