1...Y=1/2X^2-X+4,当函数值Y随X增大而减小时,X取值范围是_________2...抛物线Y=X^2-2根号a x+a^2的顶点在直线Y=2上,则a的值为__________3...已知抛物线Y=1/2x^2+x-5/2,用配方法求出它的顶点坐标和对称轴(这题
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![1...Y=1/2X^2-X+4,当函数值Y随X增大而减小时,X取值范围是_________2...抛物线Y=X^2-2根号a x+a^2的顶点在直线Y=2上,则a的值为__________3...已知抛物线Y=1/2x^2+x-5/2,用配方法求出它的顶点坐标和对称轴(这题](/uploads/image/z/5922905-41-5.jpg?t=1...Y%3D1%2F2X%5E2-X%2B4%2C%E5%BD%93%E5%87%BD%E6%95%B0%E5%80%BCY%E9%9A%8FX%E5%A2%9E%E5%A4%A7%E8%80%8C%E5%87%8F%E5%B0%8F%E6%97%B6%2CX%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E6%98%AF_________2...%E6%8A%9B%E7%89%A9%E7%BA%BFY%3DX%5E2-2%E6%A0%B9%E5%8F%B7a+x%2Ba%5E2%E7%9A%84%E9%A1%B6%E7%82%B9%E5%9C%A8%E7%9B%B4%E7%BA%BFY%3D2%E4%B8%8A%2C%E5%88%99a%E7%9A%84%E5%80%BC%E4%B8%BA__________3...%E5%B7%B2%E7%9F%A5%E6%8A%9B%E7%89%A9%E7%BA%BFY%3D1%2F2x%5E2%2Bx-5%2F2%2C%E7%94%A8%E9%85%8D%E6%96%B9%E6%B3%95%E6%B1%82%E5%87%BA%E5%AE%83%E7%9A%84%E9%A1%B6%E7%82%B9%E5%9D%90%E6%A0%87%E5%92%8C%E5%AF%B9%E7%A7%B0%E8%BD%B4%EF%BC%88%E8%BF%99%E9%A2%98)
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