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The Coordinate Plane. By: Christine Berg Edited By:VTHamilton. Definition. Coordinate Plane. The plane formed when 2 perpendicular number lines intersect at their zero points. Coordinate Plane. The perpendicular number lines form a grid on the plane. X-axis.
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The Coordinate Plane By: Christine Berg Edited By:VTHamilton
Definition Coordinate Plane The plane formed when 2 perpendicular number lines intersect at their zero points
Coordinate Plane The perpendicular number lines form a grid on the plane
X-axis The horizontal number line • Positive to the right • Negative to the left
Y-axis The vertical number line • Positive upward • Negative downward
Origin Where the x and y axes intersect at their zero points
Quadrants The x and y axes divide the coordinate plane into 4 parts called quadrants
II I IV III
Ordered Pair A pair of numbers (x , y) assigned to a point on the coordinate plane
Ordered Pair X-coordinate (x , y) Y-coordinate
Plotting a Point Step 1: Begin at the Origin
Plotting a Point Step 2: Locate x on the x-axis
Plotting a Point Step 3: Move up or down to the value of y
Plotting a Point Step 4: Draw a dot and label the point
In Your Own Words • What is a coordinate plane? • Define origin • How do you plot a point?