Question 1040898
The midpoint is the average of the x and y values of A and C.
{{{x[m]=(4+x[C])/2=2}}}
{{{4+x[C]=4}}}
{{{x[C]=0}}}
and
{{{y[m]=(3+y[C])/2=5}}}
{{{3+y[C]=10}}}
{{{y[C]=7}}}
(0,7)