Chapter 1-7

Chapter 1-7

Midpoint and Distance in the Coordinate Plane

Take Note! 

Midpoint Formula

Definition 1:
The average or mean of two coordinates on a line.
Formula 1:
(a + c) / 2 = b

Take Note! 

Example Problem

Find the midpoint using the the midpoint formula.

Take Note! 

Midpoint Formula

Definition 2:
The coordinates (coordinate pairs) are the average of the x-coordinates and the y-coordinates.

Take Note! Example Problem

Find the midpoint of the line on the coordinate grid.

Multiple Choice

Which expression will find the midpoint of

 $\overline{RS}$   with endpoints R(5, -10) and S(3 , 6)?

•  $5+\left(-10\right)\ +\ 3+6$  

•  $\frac{\left(5+\left(-10\right)\right)}{2}+\frac{\left(3+6\right)}{2}$  

•  $\frac{\left(3+5\right)}{2},\frac{\left(6+\left(-10\right)\right)}{2}$  

Open Ended

What does the midpoint formula do?

THE DISTANCE FORMULA

Take Note! Example Problem

Homework

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