如图在直角梯形abcd中 ad‖bc,AB⊥BC,AD=1,AB=2,DC=2根号2,点P在边BC上运动(与B,C不重合),设PC=x,四边形ABPD的面积为y.求y关于x的函数关系式,并写出自变量x的取值范围.
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![如图在直角梯形abcd中 ad‖bc,AB⊥BC,AD=1,AB=2,DC=2根号2,点P在边BC上运动(与B,C不重合),设PC=x,四边形ABPD的面积为y.求y关于x的函数关系式,并写出自变量x的取值范围.](/uploads/image/z/8581339-19-9.jpg?t=%E5%A6%82%E5%9B%BE%E5%9C%A8%E7%9B%B4%E8%A7%92%E6%A2%AF%E5%BD%A2abcd%E4%B8%AD+ad%E2%80%96bc%2CAB%E2%8A%A5BC%2CAD%3D1%2CAB%3D2%2CDC%3D2%E6%A0%B9%E5%8F%B72%2C%E7%82%B9P%E5%9C%A8%E8%BE%B9BC%E4%B8%8A%E8%BF%90%E5%8A%A8%EF%BC%88%E4%B8%8EB%2CC%E4%B8%8D%E9%87%8D%E5%90%88%EF%BC%89%2C%E8%AE%BEPC%3Dx%2C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABPD%E7%9A%84%E9%9D%A2%E7%A7%AF%E4%B8%BAy.%E6%B1%82y%E5%85%B3%E4%BA%8Ex%E7%9A%84%E5%87%BD%E6%95%B0%E5%85%B3%E7%B3%BB%E5%BC%8F%2C%E5%B9%B6%E5%86%99%E5%87%BA%E8%87%AA%E5%8F%98%E9%87%8Fx%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4.)
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