y=kx+3y=1/kx-52个式子联立得x=8k/(1-k^2) y=8k^2/(1-k^2)+3因为交点在直线y=x上 所以8k/(1-k^2)=8k^2/(1-k^2)+38k/(1-k^2)=8k^2/(1-k^2)+38k=8k^2+3(1-k^2)8k=5k^2+35k^2-8k+3=0(5k-3)(k-1)=0k=3/5或k=1因为交点...