Question 846589
The midpoint is the average of the x and y values.
{{{x[m]=(x[1]+x[2])/2=(6+x)/2=-4}}}
{{{6+x=-8}}}
{{{x=-14}}}
{{{y[m]=(y[1]+y[2])/2=(2+y)/2=1}}}
{{{2+y=2}}}
{{{y=0}}}
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{{{drawing(300,300,-15,9,-6,6,grid(1),circle(6,2,0.3),circle(-4,1,0.3),circle(-14,0,0.3),line(6,2,-14,0))}}}