Question 706309
( -3,5 ) and ( 2,-7 )
{{{ ( x[1] + x[2] ) / 2 = ( 2 - 3 ) / 2 }}}
{{{ ( x[1] + x[2] ) / 2 = -1/2 }}}
and
{{{ ( y[1] + y[2] ) / 2 = ( -7 + 5 ) / 2 = -2/2 }}}
{{{ ( y[1] + y[2] ) / 2 = -1 }}}
The midpoint is at ( -1/2 , -1 )
check answer:
{{{ -1/2 -(-3) = 5/2 }}}
{{{ 2 -(-1/2) = 5/2 }}}
and
{{{ 5 -(-1) = 6 }}}
{{{ -1 -(-7) = 6 }}}
OK