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2x+y-3=0 x+y-1=0 x-y-3=0 2x-y-5=0
2x+y+5=0或2x+y﹣5=0 2x+y+=0或2x+y﹣=0 2x﹣y+5=0或2x﹣y﹣5=0 2x﹣y+=0或2x﹣y﹣=0
(x+1)2+(y+4)2=4 (x﹣1)2+(y﹣4)2=4 (x﹣4)2+(y﹣1)2=4 (x+4)2+(y+1)2=4
x-y-3=0 2x+y-3=0 x+y-1=0 2x-y-5=0
2x-y-5=0 2x+y-3=0 x+y-1=0 x-y-3=0
x-y-3=0 2x+y-3=0 x+y-1=0 2x-y-5=0
x﹣y﹣3=0 2x+y﹣3=0 x+y﹣1=0 2x﹣y﹣5=0
的坐标是(1,2),则直线PQ的方程是( ) A.x+2y-3=0 x+2y-5=0 2x-y+4=0 2x-y=0
(1,2),则直线PQ的方程是( ) A.x+2y-3=0 x+2y-5=0 2x-y+4=0 2x-y=0
x-y-3=0 2x+y-3=0 x+y-1=0 2x-y-5=0
y2-4x+4y+8=0 y2+2x-2y+2=0 y2+4x-4y+8=0 y2-2x-y-1=0
x-2y+1=0 x+2y-3=0 2x+y-3=0 2x-y-1=0
2x+y-3=0 x-2y+1=0 x+2y-3=0 2x-y-1=0
2x+y+5=0或2x+y﹣5=0 2x+y+=0或2x+y﹣=0 2x﹣y+5=0或2x﹣y﹣5=0 2x﹣y+=0或2x﹣y﹣=0