如图,平面直角坐标系中点A(4,0),已知过点A的直线l与y轴正半轴交于点P,且△AOP的面积是8,又平面内正方形ABCD的顶点B的坐标是(2,h),其中h>2(1)求直线l的表达式(2)求点D的坐标(用含h的代
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![如图,平面直角坐标系中点A(4,0),已知过点A的直线l与y轴正半轴交于点P,且△AOP的面积是8,又平面内正方形ABCD的顶点B的坐标是(2,h),其中h>2(1)求直线l的表达式(2)求点D的坐标(用含h的代](/uploads/image/z/8839423-55-3.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%B9%B3%E9%9D%A2%E7%9B%B4%E8%A7%92%E5%9D%90%E6%A0%87%E7%B3%BB%E4%B8%AD%E7%82%B9A%284%2C0%29%2C%E5%B7%B2%E7%9F%A5%E8%BF%87%E7%82%B9A%E7%9A%84%E7%9B%B4%E7%BA%BFl%E4%B8%8Ey%E8%BD%B4%E6%AD%A3%E5%8D%8A%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9P%2C%E4%B8%94%E2%96%B3AOP%E7%9A%84%E9%9D%A2%E7%A7%AF%E6%98%AF8%2C%E5%8F%88%E5%B9%B3%E9%9D%A2%E5%86%85%E6%AD%A3%E6%96%B9%E5%BD%A2ABCD%E7%9A%84%E9%A1%B6%E7%82%B9B%E7%9A%84%E5%9D%90%E6%A0%87%E6%98%AF%EF%BC%882%2Ch%EF%BC%89%2C%E5%85%B6%E4%B8%ADh%EF%BC%9E2%EF%BC%881%EF%BC%89%E6%B1%82%E7%9B%B4%E7%BA%BFl%E7%9A%84%E8%A1%A8%E8%BE%BE%E5%BC%8F%EF%BC%882%EF%BC%89%E6%B1%82%E7%82%B9D%E7%9A%84%E5%9D%90%E6%A0%87%EF%BC%88%E7%94%A8%E5%90%ABh%E7%9A%84%E4%BB%A3)
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