What is the midnumber between 1 and 7 ? 
( 1 + 7 ) ÷ 2 = 
8 ÷ 2 = 4 
That was the direction now tell me what is the midpoint of point A and point B ? 
midpoint of AB = ( A + B ) ÷ 2
m o AB = ( ( 14 , 15 ) + ( - 2 , 9 ) ) ÷ 2
m o AB = ( ( 14 - 2 , 15 + 9 ) ) ÷ 2 
m o AB = ( ( 12 , 24 ) ) ÷ 2
m o AB = ( 12 ÷ 2 , 24 ÷ 2 )
m o AB = ( 6 , 12 )