1. Warm Up

2. Warm Up

3. The Coordinate Plane
Section 1.8

4. Length of a Segment (Vertical or Horizontal)

5. The Distance Formula
The distance between 2 points A(x1, y1) and B(x2, y2) is:

6. The Distance Formula
AB = 5, and point A has coordinates (1, 2). If the x coordinate of B is 5, what are the possible y values?

7. The Midpoint Formula
The coordinates of the midpoint M of AB with endpoints A(x1, y1) and B(x2, y2) are:

8. The Midpoint Formula
The coordinates of the midpoint M are (-1, 3). If the coordinates of A are (-5, 4) find the coordinates of B.

9. Recap
To find the length of a segment or the distance between 2 points on the coordinate plane, use the Distance Formula.
To find the midpoint of a segment, use the Midpoint Formula. If a segment is bisected, it is bisected at its midpoint.