若一次函数y=kx+b图像经过一三四象限(1)则k,b范围为?(2)当m=?时函数y=(m-2)的(m平方+m-5)次幂是一个一次函数此时函数在R上单调性为?thank you very much
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![若一次函数y=kx+b图像经过一三四象限(1)则k,b范围为?(2)当m=?时函数y=(m-2)的(m平方+m-5)次幂是一个一次函数此时函数在R上单调性为?thank you very much](/uploads/image/z/2605677-69-7.jpg?t=%E8%8B%A5%E4%B8%80%E6%AC%A1%E5%87%BD%E6%95%B0y%3Dkx%2Bb%E5%9B%BE%E5%83%8F%E7%BB%8F%E8%BF%87%E4%B8%80%E4%B8%89%E5%9B%9B%E8%B1%A1%E9%99%90%EF%BC%881%EF%BC%89%E5%88%99k%2Cb%E8%8C%83%E5%9B%B4%E4%B8%BA%3F%EF%BC%882%EF%BC%89%E5%BD%93m%3D%3F%E6%97%B6%E5%87%BD%E6%95%B0y%3D%28m-2%29%E7%9A%84%28m%E5%B9%B3%E6%96%B9%2Bm-5%29%E6%AC%A1%E5%B9%82%E6%98%AF%E4%B8%80%E4%B8%AA%E4%B8%80%E6%AC%A1%E5%87%BD%E6%95%B0%E6%AD%A4%E6%97%B6%E5%87%BD%E6%95%B0%E5%9C%A8R%E4%B8%8A%E5%8D%95%E8%B0%83%E6%80%A7%E4%B8%BA%3Fthank+you+very+much)
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