Which is the midpoint of the line segment with endpoints (1 2) and (7 8)

(4, 5)

Step-by-step explanation:

Calculate the midpoint using the midpoint formula

midpoint = [( + ), ( + ) ]

with (, ) = (1, 2) and (, ) = (7, 8)

midpoint = [(1 + 7), (2 + 8) ]

               = (4, 5)

dd

step-by-step explanation:

dd

expression #3 is not equivalent. the others are.