△PAO的面积为6,1/2*AO*PB=1/2*4*PB=6PB=3∴点P的纵坐标为3或-3
点P在直线y=-x+2上,y=3 x=-1;y=-3x=5∴点P(-1,3)或(5,-3)
当P(-1,3) A(4,0)时求得k=-3/5 b=12/5y=-3/5x+12/5
当P(5,-3) A(4,0)时解得k=-3b=12y=-3x+12
△PAO的面积为6,1/2*AO*PB=1/2*4*PB=6PB=3∴点P的纵坐标为3或-3
点P在直线y=-x+2上,y=3 x=-1;y=-3x=5∴点P(-1,3)或(5,-3)
当P(-1,3) A(4,0)时求得k=-3/5 b=12/5y=-3/5x+12/5
当P(5,-3) A(4,0)时解得k=-3b=12y=-3x+12