Click on the box that says "Midpoint".
Move the points A and B around and look at how the formula is impacted.
1. Without using (0,0) as one of your ordered pairs, record an ordered pair for A ( , ) and and ordered pair for B ( , ) that creates a mid point of (4, 3).
2. Without using (0,0) as one of your ordered pairs, record an ordered pair for A ( , ) and and ordered pair for B ( , ) that creates a mid point of (-2, 5).
3. Without using (0,0) as one of your ordered pairs, record an ordered pair for A ( , ) and and ordered pair for B ( , ) that creates a mid point of (1, -3).
4. If you know point A is (3,-3) and the midpoint for line segment AB is (2, 6), what would the coordinates for point B be?
5. Explain how you can figure out what the coordinates would be for one endpoint when you know one of the endpoints and the midpoint.