已知直线L1:y1=k1x1+b1,L2:y2=k2x2+b2,他们的交点为(a,b),若两式相加,即y1+y2=k1x1+b1+k2x2+b2,可得一个新的解析式y3=k3x3+b3,那么这条新直线是否过(a,b)?为什么?本人比较菜
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/27 00:20:42
![已知直线L1:y1=k1x1+b1,L2:y2=k2x2+b2,他们的交点为(a,b),若两式相加,即y1+y2=k1x1+b1+k2x2+b2,可得一个新的解析式y3=k3x3+b3,那么这条新直线是否过(a,b)?为什么?本人比较菜](/uploads/image/z/405323-35-3.jpg?t=%E5%B7%B2%E7%9F%A5%E7%9B%B4%E7%BA%BFL1%EF%BC%9Ay1%3Dk1x1%2Bb1%2CL2%EF%BC%9Ay2%3Dk2x2%2Bb2%2C%E4%BB%96%E4%BB%AC%E7%9A%84%E4%BA%A4%E7%82%B9%E4%B8%BA%EF%BC%88a%2Cb%EF%BC%89%2C%E8%8B%A5%E4%B8%A4%E5%BC%8F%E7%9B%B8%E5%8A%A0%2C%E5%8D%B3y1%2By2%3Dk1x1%2Bb1%2Bk2x2%2Bb2%2C%E5%8F%AF%E5%BE%97%E4%B8%80%E4%B8%AA%E6%96%B0%E7%9A%84%E8%A7%A3%E6%9E%90%E5%BC%8Fy3%3Dk3x3%2Bb3%2C%E9%82%A3%E4%B9%88%E8%BF%99%E6%9D%A1%E6%96%B0%E7%9B%B4%E7%BA%BF%E6%98%AF%E5%90%A6%E8%BF%87%EF%BC%88a%2Cb%EF%BC%89%3F%E4%B8%BA%E4%BB%80%E4%B9%88%3F%E6%9C%AC%E4%BA%BA%E6%AF%94%E8%BE%83%E8%8F%9C)
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