(1)-6=k/(-1/3) k=2(2)y=2/x y=mx-4 2/x=mx-4 mx^2(表示x的平方)-4x-2=0 △=16+8m≥0 m≥-2且m≠0
把(-1/3,-6)带进Y＝K／X算出K值再把(-1/3,-6)带进Y＝MX-4算出M值
