Question

Which formula gives the coordinates of the midpoint of the segment connecting points (a, b) and (c, d)?

Answer 1

$( \frac{x1 + x2}{2} ) \: \: ( \frac{y1 + y2}{2} )$
You don't multiply both of them, it's a coordinate function. There's suppose to be a comma in between

Answer 2

Answer:

( 1/2(c + a),  1/2(d + b) )