集合A=｛(x,y)丨mx-y+2=0} 集合B=｛（x,y)丨x-y+1=0 且0≤x≤2｝ 又 A∩B≠空集,求实数m的取值范围

集合A={（x,y)|y=-x^2+mx-1},B={(x,y)|y=3-x,0 已知集合A={(x,y)|x2+mx-y+2=0}... 高二数学题难死了集合A={(x,y)丨y=-x^2+mx-1},B={(x,y)丨y=3-x,0 全题是：集合A={(x,y)丨y=-x^2+mx-1},B={(x,y)丨y=3-x,0 集合A={(x,y)|x^2+mx-y+2=0},集合B={(x,y)|x-y+1=0,且0 集合A=｛(x,y)|x^2+mx-y+2=0｝,集合｛(x,y)|x-y+1=0,且0 已知集合A={(x,y)|y=-x2+mx-1},B={(x,y)|x+y=3,0 设集合A={x|x^2+mx+1=0,x∈R},B=y|y 设集合A={x|x^2+mx+1=0,x∈R},B=y|y 已知集合A={（x,y)|x*x+mx-y+2=0},B={(x,y)|x-y+1=o,0 已知集合A={（x,y)|x*x+mx-y+2=0},B={(x,y)|x-y+1=o,0 设集合A={(x,y)|y=x^2+mx+2},B={(x,y)|x-y+1=0,x 集合A={(x,y)|x^2+mx-y+2=0} B={(x,y)|x-y+1=0,0 集合A={(x,y)|x^2+mx-y+2=0} B={(x,y)|x-y+1=0,0 已知集合A=(x,y))∣x^2+mx-y+2=0,B=(x,y))∣x-y+1=0,0 已知集合A={(x,y)|x^2+mx-y+2=0},B={(x,y)|x-y+1=0,0 已知集合A={(x,y)|x^2+mx+2=y},B={(x,y)|x-y+1=0,0 已知集合A={（X,Y）|Y=-X^2+mx-1},B={(x,y)|x+y=3,0