The Coordinate PlaneIntroduction
Coordinate Graph
Y-axis
X-axis
The four quadrants of the coordinate plane.
Quadrant I
Quadrant II
Quadrant IV
Quadrant III
Y-axis
X-axis
Signs of the quadrants.
(+,+)
(+,-)(-,-)
(-,+)
Vocabulary WordsAxes - two perpendicular number lines used for locating points
Origin – the intersection of the two axes
Y-axis – the vertical number line
X-axis – the hoizontal number line
The Ordered Pair
(5,10)X-
coordinateY-
coordinate
Y-axis
X-axis
The Origin Point
OriginPoint(0,0)
•Always start at the origin to plot a point.
Y-axis
X-axis
Direction of Movement for the X-Coordinate
If the x-coordinate is positive move this way
If the x-coordinate is negative move this way
Y-axis
X-axis
Direction of movement for the Y-coordinate
If the y-coordinate is positive move this way
If the y-coordinate is negative move this way
Y-axis
X-axis
Name the given point.
(1,3)
(-5,-1)
(-2,1)
(4,0)
Y-axis
X-axis
(4,4)
(-3,-1)
First move
out on the X-axis
Next move on the Y-
axis
How To Plot a Point on the Coordinate Plane