1.如图,已知直线y=kx-3经过点M(-2,1),求此直线的解析式以及该直线与X轴,Y轴的交点坐标2.已知一次函数y=kx+b的图像与y轴的交点到原点的距离为3,且过A(2,1)点,求它的解析式
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![1.如图,已知直线y=kx-3经过点M(-2,1),求此直线的解析式以及该直线与X轴,Y轴的交点坐标2.已知一次函数y=kx+b的图像与y轴的交点到原点的距离为3,且过A(2,1)点,求它的解析式](/uploads/image/z/2593687-31-7.jpg?t=1.%E5%A6%82%E5%9B%BE%2C%E5%B7%B2%E7%9F%A5%E7%9B%B4%E7%BA%BFy%3Dkx-3%E7%BB%8F%E8%BF%87%E7%82%B9M%EF%BC%88-2%2C1%EF%BC%89%2C%E6%B1%82%E6%AD%A4%E7%9B%B4%E7%BA%BF%E7%9A%84%E8%A7%A3%E6%9E%90%E5%BC%8F%E4%BB%A5%E5%8F%8A%E8%AF%A5%E7%9B%B4%E7%BA%BF%E4%B8%8EX%E8%BD%B4%2CY%E8%BD%B4%E7%9A%84%E4%BA%A4%E7%82%B9%E5%9D%90%E6%A0%872.%E5%B7%B2%E7%9F%A5%E4%B8%80%E6%AC%A1%E5%87%BD%E6%95%B0y%3Dkx%2Bb%E7%9A%84%E5%9B%BE%E5%83%8F%E4%B8%8Ey%E8%BD%B4%E7%9A%84%E4%BA%A4%E7%82%B9%E5%88%B0%E5%8E%9F%E7%82%B9%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%B8%BA3%2C%E4%B8%94%E8%BF%87A%EF%BC%882%2C1%EF%BC%89%E7%82%B9%2C%E6%B1%82%E5%AE%83%E7%9A%84%E8%A7%A3%E6%9E%90%E5%BC%8F)
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