已知二次函数y=(m-1)x的平方+(m-2)x-1 (m为实数)(1)当m为何值时,函数图象与x轴有两个交点(2)若抛物线与x轴交与A、B点,与y轴交与C点,且三角形ABC的面积=2,试确定m的值。
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![已知二次函数y=(m-1)x的平方+(m-2)x-1 (m为实数)(1)当m为何值时,函数图象与x轴有两个交点(2)若抛物线与x轴交与A、B点,与y轴交与C点,且三角形ABC的面积=2,试确定m的值。](/uploads/image/z/1083124-28-4.jpg?t=%E5%B7%B2%E7%9F%A5%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0y%3D%28m-1%29x%E7%9A%84%E5%B9%B3%E6%96%B9%2B%28m-2%29x-1+%28m%E4%B8%BA%E5%AE%9E%E6%95%B0%29%281%29%E5%BD%93m%E4%B8%BA%E4%BD%95%E5%80%BC%E6%97%B6%2C%E5%87%BD%E6%95%B0%E5%9B%BE%E8%B1%A1%E4%B8%8Ex%E8%BD%B4%E6%9C%89%E4%B8%A4%E4%B8%AA%E4%BA%A4%E7%82%B9%282%29%E8%8B%A5%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%B8%8EA%E3%80%81B%E7%82%B9%EF%BC%8C%E4%B8%8Ey%E8%BD%B4%E4%BA%A4%E4%B8%8EC%E7%82%B9%EF%BC%8C%E4%B8%94%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E9%9D%A2%E7%A7%AF%3D2%EF%BC%8C%E8%AF%95%E7%A1%AE%E5%AE%9Am%E7%9A%84%E5%80%BC%E3%80%82)
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