Graphing in the Coordinate Plane – Vocabulary

Coordinate Plane – a plane in which a horizontal number line and a vertical number line intersect at their zero points

Origin – The point of intersection of the x-axis and y-axis in a coordinate plane

x-axis – The horizontal number line that helps to form the coordinate plane

y-axis – The vertical number line that helps to form the coordinate plane

Quadrants – The four regions into which the two perpendicular number lines of the coordinate plane separate the plane.

Ordered Pair – A pair of numbers used to locate a point in the coordinate plane. The ordered pair is written in this form: (x-coordinate, y-coordinate)

x-coordinate – The first number in an ordered pair

y-coordinate – The second number in an ordered pair

I II

III IV

x

y