把y=6分别代入y1与y2得;3x-2k=6(k-3)/x=6则6x-4k=12k-3=6xk-3-4k=12 -3k=15 k=-5y1=3x+10y2=-8/xy1与y2交点3x+10=-8/x3x²+10x+8=0(3x+4)(x+2)=0x1=-4/3 x2=-2交点(-4/3,6) (-2,4)交点都在第二象限-4/3