两道关于二次函数的题目1,一抛物线的顶点坐标为(-1,2),点(-3,-2)在此图像上,若抛物线与两坐标的交点为a,b,c三点,求此三点组成的三角形面积(这一题我老师算错,吐血啊).2,某二次函数
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![两道关于二次函数的题目1,一抛物线的顶点坐标为(-1,2),点(-3,-2)在此图像上,若抛物线与两坐标的交点为a,b,c三点,求此三点组成的三角形面积(这一题我老师算错,吐血啊).2,某二次函数](/uploads/image/z/12339258-42-8.jpg?t=%E4%B8%A4%E9%81%93%E5%85%B3%E4%BA%8E%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0%E7%9A%84%E9%A2%98%E7%9B%AE1%2C%E4%B8%80%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%9A%84%E9%A1%B6%E7%82%B9%E5%9D%90%E6%A0%87%E4%B8%BA%EF%BC%88-1%2C2%EF%BC%89%2C%E7%82%B9%EF%BC%88-3%2C-2%EF%BC%89%E5%9C%A8%E6%AD%A4%E5%9B%BE%E5%83%8F%E4%B8%8A%2C%E8%8B%A5%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%B8%8E%E4%B8%A4%E5%9D%90%E6%A0%87%E7%9A%84%E4%BA%A4%E7%82%B9%E4%B8%BAa%2Cb%2Cc%E4%B8%89%E7%82%B9%2C%E6%B1%82%E6%AD%A4%E4%B8%89%E7%82%B9%E7%BB%84%E6%88%90%E7%9A%84%E4%B8%89%E8%A7%92%E5%BD%A2%E9%9D%A2%E7%A7%AF%EF%BC%88%E8%BF%99%E4%B8%80%E9%A2%98%E6%88%91%E8%80%81%E5%B8%88%E7%AE%97%E9%94%99%2C%E5%90%90%E8%A1%80%E5%95%8A%EF%BC%89.2%2C%E6%9F%90%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0)
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