[数学高手来]已知抛物线y=-3/4x^2+bx+c与坐标轴交于A,B,C三点,已知抛物线y=-3/4x^2+bx+c与坐标轴交于A,B,C三点,点A的横坐标-1,过点C(0,c)的直线y=(-3/4t)X+3与x轴交于点Q,点p是线段BC上的一个动点,PH
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![[数学高手来]已知抛物线y=-3/4x^2+bx+c与坐标轴交于A,B,C三点,已知抛物线y=-3/4x^2+bx+c与坐标轴交于A,B,C三点,点A的横坐标-1,过点C(0,c)的直线y=(-3/4t)X+3与x轴交于点Q,点p是线段BC上的一个动点,PH](/uploads/image/z/7118450-26-0.jpg?t=%5B%E6%95%B0%E5%AD%A6%E9%AB%98%E6%89%8B%E6%9D%A5%5D%E5%B7%B2%E7%9F%A5%E6%8A%9B%E7%89%A9%E7%BA%BFy%3D-3%2F4x%5E2%2Bbx%2Bc%E4%B8%8E%E5%9D%90%E6%A0%87%E8%BD%B4%E4%BA%A4%E4%BA%8EA%2CB%2CC%E4%B8%89%E7%82%B9%2C%E5%B7%B2%E7%9F%A5%E6%8A%9B%E7%89%A9%E7%BA%BFy%3D-3%2F4x%5E2%2Bbx%2Bc%E4%B8%8E%E5%9D%90%E6%A0%87%E8%BD%B4%E4%BA%A4%E4%BA%8EA%2CB%2CC%E4%B8%89%E7%82%B9%2C%E7%82%B9A%E7%9A%84%E6%A8%AA%E5%9D%90%E6%A0%87-1%2C%E8%BF%87%E7%82%B9C%EF%BC%880%2Cc%EF%BC%89%E7%9A%84%E7%9B%B4%E7%BA%BFy%3D%EF%BC%88-3%2F4t%EF%BC%89X%2B3%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9Q%2C%E7%82%B9p%E6%98%AF%E7%BA%BF%E6%AE%B5BC%E4%B8%8A%E7%9A%84%E4%B8%80%E4%B8%AA%E5%8A%A8%E7%82%B9%2CPH)
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