SAT Subject Test Mathematics Level 2

To find the midpoint of a segment, average the x-coordinates and average the y-coordinates of the
endpoints:

MIDPOINT

To  find    the midpoint    between (x 1 ,  y 1 )   and (x 2 ,  y 2 ),  average the x-coordinates   and average the

y-coordinates:

To find the distance between two points, use the distance formula:

The answer is (D).

DISTANCE FORMULA