设直线y=kx+b与抛物线C:y=4x交于两点A(x1,y1),B(x2,y2),且|y1-y2|=a(a>0,且a为常设直线y=kx+b与抛物线C:y=4x交于两点A(x1,y1),B(x2,y2),且|y1-y2|=a(a>0,且a为常数),过弦AB的中点M作平行于x轴的直线交抛物线
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![设直线y=kx+b与抛物线C:y=4x交于两点A(x1,y1),B(x2,y2),且|y1-y2|=a(a>0,且a为常设直线y=kx+b与抛物线C:y=4x交于两点A(x1,y1),B(x2,y2),且|y1-y2|=a(a>0,且a为常数),过弦AB的中点M作平行于x轴的直线交抛物线](/uploads/image/z/13339493-53-3.jpg?t=%E8%AE%BE%E7%9B%B4%E7%BA%BFy%3Dkx%2Bb%E4%B8%8E%E6%8A%9B%E7%89%A9%E7%BA%BFC%3Ay%3D4x%E4%BA%A4%E4%BA%8E%E4%B8%A4%E7%82%B9A%28x1%2Cy1%29%2CB%28x2%2Cy2%29%2C%E4%B8%94%7Cy1-y2%7C%3Da%28a%3E0%2C%E4%B8%94a%E4%B8%BA%E5%B8%B8%E8%AE%BE%E7%9B%B4%E7%BA%BFy%3Dkx%2Bb%E4%B8%8E%E6%8A%9B%E7%89%A9%E7%BA%BFC%EF%BC%9Ay%3D4x%E4%BA%A4%E4%BA%8E%E4%B8%A4%E7%82%B9A%EF%BC%88x1%2Cy1%EF%BC%89%2CB%28x2%2Cy2%29%2C%E4%B8%94%7Cy1-y2%7C%3Da%EF%BC%88a%3E0%2C%E4%B8%94a%E4%B8%BA%E5%B8%B8%E6%95%B0%EF%BC%89%2C%E8%BF%87%E5%BC%A6AB%E7%9A%84%E4%B8%AD%E7%82%B9M%E4%BD%9C%E5%B9%B3%E8%A1%8C%E4%BA%8Ex%E8%BD%B4%E7%9A%84%E7%9B%B4%E7%BA%BF%E4%BA%A4%E6%8A%9B%E7%89%A9%E7%BA%BF)
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设直线y=kx+b与抛物线C:y=4x交于两点A(x1,y1),B(x2,y2),且|y1-y2|=a(a>0,且a为常设直线y=kx+b与抛物线C:y=4x交于两点A(x1,y1),B(x2,y2),且|y1-y2|=a(a>0,且a为常数),过弦AB的中点M作平行于x轴的直线交抛物线
设直线y=kx+b与抛物线C:y=4x交于两点A(x1,y1),B(x2,y2),且|y1-y2|=a(a>0,且a为常
设直线y=kx+b与抛物线C:y=4x交于两点A(x1,y1),B(x2,y2),且|y1-y2|=a(a>0,且a为常数),过弦AB的中点M作平行于x轴的直线交抛物线于点D,连接AD、BD得到△ABD,则△ABD是否为定值?若是,求出这个定值;若不是,说明理由
设直线y=kx+b与抛物线C:y=4x交于两点A(x1,y1),B(x2,y2),且|y1-y2|=a(a>0,且a为常设直线y=kx+b与抛物线C:y=4x交于两点A(x1,y1),B(x2,y2),且|y1-y2|=a(a>0,且a为常数),过弦AB的中点M作平行于x轴的直线交抛物线
您说的是面积为定值还是什么.另外,抛物线的方程有误.是否是y²=4x?