Mathematics for IGCSE & O level - Coordinate Geometry (Section 3 - No. 43)
Which of the following is the formula for the midpoint of a line segment with endpoints (x1, y1) and (x2, y2)?
(x1 + x2, y1 + y2)
((x1 + x2)/2, (y1 + y2)/2)
(x2 - x1, y2 - y1)
sqrt((x2 - x1)^2 + (y2 - y1)^2)
설명
Midpoint formula: ((x1 + x2)/2, (y1 + y2)/2)