Question 342923


Use the midpoint formula,
{{{x[M]=(x[D]+x[E])/2}}}
{{{-4=(6+x[E])/2}}}
{{{6+x[E]=-8}}}
Solve to find {{{x[E]}}}
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{{{y[M]=(y[D]+y[E])/2}}}
{{{-8=(1+y[E])/2}}}
{{{1+y[E]=-16}}}
Solve to find {{{y[E]}}}