(x+y-1)-xy=0的函数怎么画

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(x+y-1)-xy=0的函数怎么画(x+y-1)-xy=0的函数怎么画(x+y-1)-xy=0的函数怎么画变下形:(x+y-1)-xy=0==>x+y-1-xy=0==>x-1+y(1-x)=0y=

(x+y-1)-xy=0的函数怎么画
(x+y-1)-xy=0的函数怎么画

(x+y-1)-xy=0的函数怎么画
变下形:(x+y-1)-xy=0==>x+y-1-xy=0==>x-1+y(1-x)=0 y=(x-1)/(1-x)=-1 x≠1