Question 758148
{{{ drawing( 600,600, -10, 10, -10, 10,green( line(-1, -2, 0, -2 ) ), circle(-1,-2,0.1),green( line( -1, 0, -1, -2 ) ), locate(-1.5,-2,P(-1,-2)),graph( 600,600, -10, 10, -10, 10, 0)) }}}