Points

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# Points - PowerPoint PPT Presentation

Points. Distance and Midpoint. Coordinate Plane. y -axis. II I. When graphing points in the coordinate plane, remember it is ( x,y ). The quadrants are numbered with Roman numerals and go counter clockwise. x -axis. III IV. Distance.

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## PowerPoint Slideshow about 'Points' - emerson-morin

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Presentation Transcript

### Points

Distance and Midpoint

Coordinate Plane

y-axis

II I

• When graphing points in the coordinate plane, remember it is (x,y).
• The quadrants are numbered with Roman numerals and go counter clockwise.

x-axis

III IV

Distance
• The distance formula is used to find the distance between two points.
• The notation is only telling you to make sure to use the coordinates from the 2nd point, then the coordinates from the 1st point.
• Find the distance between (2,5) and (6,8).
• = 5
• Distance is always positive!!
Distance
• You try a few!
• (5,4) and (3,7)
• (8,-2) and (-5,-9)
• (15,-15) and (-1,0)
• (-5,-5) and (0,0)
Midpoint
• Midpoint is the point exactly in the middle of two points. (Just like it sounds!!)
• It is the average of the x coordinates and the y coordinates.
• The midpoint is always written as an ordered pair.
• What is the midpoint between (2,5) and (6,1).
• x = =
• y =
• The midpoint is at (4,3).
Midpoint