Point A is at (-1,8) and point B is at (7,3).
What is the midpoint of line segment AB?

( 3, 5.5 )

Step-by-step explanation:

Let,

( x1, y1 ) = ( 7, 3 )

Where,

x1 = 7

y1 = 3

Let,

( x2, y2 ) = ( - 1, 8 )

Where,

x2 = - 1

y2 = 8

Formula : -

Midpoint = ( x1 + x2 ) / 2, ( y1 + y2 ) / 2

Midpoint of AB

= ( - 1 + 7 ) / 2, ( 8 + 3 ) / 2

= 6 / 2, 11 / 2

= ( 3, 11 / 2 )

= ( 3, 5.5 )

the first one, all those points on the line just make a strait line.