Question 908991
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Hi
Recommend Plotting Points:
symmetry says fourth vertex is (7,3)(down2, over 4) from P(3,5))
{{{drawing(300,300,   -6, 10, -6, 6, grid(1), 
circle(1, -3,0.2),
circle(-3, -1,0.2),
circle(3, 5,0.2),
circle(7, 3,0.2),
graph( 300, 300, -6, 10, -6, 6) )}}}