1. The Distance & Midpoint Formulas Section: 7-1 By Sean Gretz

2. Distance Formula We use the Distance Formula to find the distance between 2 points The X terms represent the X coordinates of the points we are trying to find the distance between The Y terms represent the Y coordinates of the points we are trying to find the distance between

3. Check out this sample http://www.youtube.com/watch?v=910e77Gy yCk http://www.youtube.com/watch?v=910e77Gy yCk Warning! - Don’t pause just listen. This is an example of how to use the distance formula

4. Try this problem and check your work Find the distance between the points (-5,7) and (9,-11).

5. Midpoint Formula We use the midpoint formula to find the midpoint of a line segment The X terms side gives us the X coordinate of the midpoint The Y terms side gives us the Y coordinate of the midpoint

6. Here’s another sample http://www.youtube.com/watch?v=PGayeDt Mhtc http://www.youtube.com/watch?v=PGayeDt Mhtc This is an example of how to use the midpoint formula

7. Try this problem and check your work Find the midpoint of a line connecting points (-3,5) and (2,3) Set 1 ordered pair equal to the formula

8. Remember the Formulas Distance Formula Midpoint Formula