直线y=kx+b过点(-1,0),0 = -k + b,k = b
y = k(x+1)
直线y=-√5x+√3和x,y轴的交点分别为A(√(3/5),0),B(0,√3)
y = k(x+1)过A时,0 = k[√(3/5)+1],k= 0
y = k(x+1)过B时,√3 = k(0+1),k= √3
0<k<√3
直线y=kx+b过点(-1,0),0 = -k + b,k = b
y = k(x+1)
直线y=-√5x+√3和x,y轴的交点分别为A(√(3/5),0),B(0,√3)
y = k(x+1)过A时,0 = k[√(3/5)+1],k= 0
y = k(x+1)过B时,√3 = k(0+1),k= √3
0<k<√3