菁优网会员进是箐优网的会员帮我把这道题答案发来抛物线y=-x2+x+1与y轴交于A点,过点A的直线与抛物线交于另一点B,过点B作BC⊥x轴,垂足为点C(3,0)(1)求直线AB的函数关系式;(2)动点P在
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![菁优网会员进是箐优网的会员帮我把这道题答案发来抛物线y=-x2+x+1与y轴交于A点,过点A的直线与抛物线交于另一点B,过点B作BC⊥x轴,垂足为点C(3,0)(1)求直线AB的函数关系式;(2)动点P在](/uploads/image/z/10472138-26-8.jpg?t=%E8%8F%81%E4%BC%98%E7%BD%91%E4%BC%9A%E5%91%98%E8%BF%9B%E6%98%AF%E7%AE%90%E4%BC%98%E7%BD%91%E7%9A%84%E4%BC%9A%E5%91%98%E5%B8%AE%E6%88%91%E6%8A%8A%E8%BF%99%E9%81%93%E9%A2%98%E7%AD%94%E6%A1%88%E5%8F%91%E6%9D%A5%E6%8A%9B%E7%89%A9%E7%BA%BFy%3D-x2%2Bx%2B1%E4%B8%8Ey%E8%BD%B4%E4%BA%A4%E4%BA%8EA%E7%82%B9%2C%E8%BF%87%E7%82%B9A%E7%9A%84%E7%9B%B4%E7%BA%BF%E4%B8%8E%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%BA%A4%E4%BA%8E%E5%8F%A6%E4%B8%80%E7%82%B9B%2C%E8%BF%87%E7%82%B9B%E4%BD%9CBC%E2%8A%A5x%E8%BD%B4%2C%E5%9E%82%E8%B6%B3%E4%B8%BA%E7%82%B9C%EF%BC%883%2C0%EF%BC%89%EF%BC%881%EF%BC%89%E6%B1%82%E7%9B%B4%E7%BA%BFAB%E7%9A%84%E5%87%BD%E6%95%B0%E5%85%B3%E7%B3%BB%E5%BC%8F%EF%BC%9B%EF%BC%882%EF%BC%89%E5%8A%A8%E7%82%B9P%E5%9C%A8)
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