Question 318834
{{{drawing(300,300,-4,8,-4,8,grid(1),
circle(0,1,.3),circle(3,7,0.3),circle(4,4,0.3),
line(4,4,3,7),line(3,7,0,1),
graph(300,300,-4,8,-4,8,0))}}}
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You must maintain the relationship that exists between the two right points for the two left points.
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To go from the top right point to the bottom right point, move +1 in the x, move -3 in the y.
 {{{x=0+1=1}}}
{{{y=1-3=-2}}}
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({{{1}}},{{{-2}}}) is the 4th point.
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{{{drawing(300,300,-4,8,-4,8,grid(1),
circle(0,1,.3),circle(3,7,0.3),circle(4,4,0.3),circle(1,-2,.3),
line(0,1,1,-2),line(1,-2,4,4),line(4,4,3,7),line(3,7,0,1),
graph(300,300,-4,8,-4,8,0))}}}