1.  Then: You graphed points on the coordinate plane.  Now: 1. Find the distance between points. 2. Find the midpoint of a segment. http://www.volgacity.com/images/Map-Parade-Route.JPG

2. 1. Number Line- absolute value of the difference between the two endpoints. If A has coordinate x 1 and D has the coordinate x 2, AD =  x 2 - x 1 . http://img.sparknotes.com/figures/2/25605ef9eeea6139810f579c9d4faca9/testprob2. gif

3. a. Use the number line to find QR.  x 2 - x 1  b. Use the number line to fin AX.  x 2 - x 1 

4. 2. Coordinate Plane- Use the Distance Formula between the two points, derived from the Pythagorean Theorem. Distance Formula: d =

5. a. Find the distance between K(2,3) and F(4,4). b. Find the distance between C(-3, -1) and Q(-2, 3)

8. 2. Coordinate Plane- use the Midpoint Formula, which is an average of the x-coordinates and y-coordinates of the endpoints. Midpoint Formula:

9. Find the coordinates of the midpoint of a segment with the given endpoints. a. R(-12,8) S(6, 12) b. M(11,-2), N(-9, 13)

10. A segment, line, or plane that intersects a segment at its midpoint.

13. Pages 31-35 #14-24 evens, 32-50 evens, 54,56,57, 78-84 evens