1.将二元一次方程4x+3y=6化成y=kx+b形式为( ) 其中k=( ),b=( )2.买单价为a元4的球拍n个,若付出500元,应找回y元则y与n之间的函数关系式为( )3.已知函数y=kx+b的图象与直线y=2x-4关于x轴对称,则k=(
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![1.将二元一次方程4x+3y=6化成y=kx+b形式为( ) 其中k=( ),b=( )2.买单价为a元4的球拍n个,若付出500元,应找回y元则y与n之间的函数关系式为( )3.已知函数y=kx+b的图象与直线y=2x-4关于x轴对称,则k=(](/uploads/image/z/13880577-57-7.jpg?t=1.%E5%B0%86%E4%BA%8C%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B4x%2B3y%3D6%E5%8C%96%E6%88%90y%3Dkx%2Bb%E5%BD%A2%E5%BC%8F%E4%B8%BA%EF%BC%88+%EF%BC%89+%E5%85%B6%E4%B8%ADk%3D%28+%29%2Cb%3D%28+%292.%E4%B9%B0%E5%8D%95%E4%BB%B7%E4%B8%BAa%E5%85%834%E7%9A%84%E7%90%83%E6%8B%8Dn%E4%B8%AA%2C%E8%8B%A5%E4%BB%98%E5%87%BA500%E5%85%83%2C%E5%BA%94%E6%89%BE%E5%9B%9Ey%E5%85%83%E5%88%99y%E4%B8%8En%E4%B9%8B%E9%97%B4%E7%9A%84%E5%87%BD%E6%95%B0%E5%85%B3%E7%B3%BB%E5%BC%8F%E4%B8%BA%EF%BC%88+%EF%BC%893.%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0y%3Dkx%2Bb%E7%9A%84%E5%9B%BE%E8%B1%A1%E4%B8%8E%E7%9B%B4%E7%BA%BFy%3D2x-4%E5%85%B3%E4%BA%8Ex%E8%BD%B4%E5%AF%B9%E7%A7%B0%2C%E5%88%99k%3D%EF%BC%88)
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