如图8所示,直线y=kx+b与x,y轴分别交于点A(2,0)B(0,4).(1)求此直线解析式;(2)若点D(1,m)在直线AB上,点C为线段OA的中点,P为OB上一动点,当PC+PD的值最小时,求P点的坐标.
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![如图8所示,直线y=kx+b与x,y轴分别交于点A(2,0)B(0,4).(1)求此直线解析式;(2)若点D(1,m)在直线AB上,点C为线段OA的中点,P为OB上一动点,当PC+PD的值最小时,求P点的坐标.](/uploads/image/z/14656830-6-0.jpg?t=%E5%A6%82%E5%9B%BE8%E6%89%80%E7%A4%BA%2C%E7%9B%B4%E7%BA%BFy%3Dkx%2Bb%E4%B8%8Ex%2Cy%E8%BD%B4%E5%88%86%E5%88%AB%E4%BA%A4%E4%BA%8E%E7%82%B9A%282%2C0%29B%280%2C4%29.%281%29%E6%B1%82%E6%AD%A4%E7%9B%B4%E7%BA%BF%E8%A7%A3%E6%9E%90%E5%BC%8F%EF%BC%9B%EF%BC%882%EF%BC%89%E8%8B%A5%E7%82%B9D%EF%BC%881%2Cm%EF%BC%89%E5%9C%A8%E7%9B%B4%E7%BA%BFAB%E4%B8%8A%2C%E7%82%B9C%E4%B8%BA%E7%BA%BF%E6%AE%B5OA%E7%9A%84%E4%B8%AD%E7%82%B9%2CP%E4%B8%BAOB%E4%B8%8A%E4%B8%80%E5%8A%A8%E7%82%B9%2C%E5%BD%93PC%2BPD%E7%9A%84%E5%80%BC%E6%9C%80%E5%B0%8F%E6%97%B6%2C%E6%B1%82P%E7%82%B9%E7%9A%84%E5%9D%90%E6%A0%87.)
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