The Midpoint forumla is used when you need the point that is exactly between two other points. The midpoint formula is applied when you need to find a line that bisects a specific line segment. Essentially, the 'middle point' is called the "midpoint".

A( x_a, y_a) and B(x_b. y_b) are two points in the (x,y) and P(x_p,y_p) is the midpoint of the line joining A and B:

The coordinate of the midpoint P is given that:

Example 1: Find the coordinate of midpoint of the line joining the point A(-4, -3) and B(4,5).

Solution:

Example 2: Find the value of p so that (-2, 2.5) is the midpoint between (p, 2) and (-1, 3).

Solution:

Apply midpoint formula, we have:

So