集合A={(x,y)丨x²+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

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集合A={(x,y)丨x²+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

集合A={(x,y)丨x²+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
集合A={(x,y)丨x²+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

集合A={(x,y)丨x²+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
由B:y=x+1 ,0=