(x-2)(y+3)=-6
y+3=-6/(x-2)
y=6/(2-x)-3=[6-3(2-x)]/(2-x)=(6-6+3x)/(2-x)=3x/(2-x)
①即:y=3x/(2-x)
②x≠2
③当x=0时,y=0,当x=a时,y=3a/(2-a)
④当y=3时,
3=3x/(2-x)
x=2-x
x=1
(x-2)(y+3)=-6
y+3=-6/(x-2)
y=6/(2-x)-3=[6-3(2-x)]/(2-x)=(6-6+3x)/(2-x)=3x/(2-x)
①即:y=3x/(2-x)
②x≠2
③当x=0时,y=0,当x=a时,y=3a/(2-a)
④当y=3时,
3=3x/(2-x)
x=2-x
x=1