Question 322275
Use the midpoint formula,
{{{xm=(x1+x2)/2}}}
{{{1=(-4+x2)/2}}}
{{{-4+x2=2}}}
{{{x2=6}}}
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{{{ym=(y1+y2)/2}}}
{{{-6=(-5+x2)/2}}}
{{{-5+x2=-12}}}
{{{y2=-7}}}
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P:(6,-7)
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{{{drawing(300,300,-8,8,-10,6,circle(-4,-5,.3),grid(1),circle(6,-7,.3),circle(1,-6,.25),blue(line(-4,-5,6,-7)),graph(300,300,-8,8,-10,6,0))}}}