1.7 Midpoint and Distance in the Coordinate Plane 9/22/10

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Presentation transcript:

1.7 Midpoint and Distance in the Coordinate Plane 9/22/10 You can use formulas to find the midpoint and the length of any segment in the coordinate plane. Number Line Coordinate Plane

Finding the Midpoint Segment AB has endpoints at -4 and 9. What is the coordinate of its midpoint?

Finding the Midpoint Segment EF has endpoints E (7 , 5) and F (2 , -4). What are the coordinates of its midpoint M?

Finding an Endpoint The midpoint of segment CD is M(-2 , 1). One endpoint is C (-5 , 7). What are the coordinates if the other endpoint D?

Distance Formula The distance between two points A(x1 , y1) and B(x1 , y1) is

Finding Distance What is the distance between U(-7 , 5) and V(4 , -3)? Round to the nearest tenth?

More Practice!!!!! Classwork – Textbook p. 54 #7 – 29 odd. Homework – Textbook p. 54 #6 – 30 even.