1. The COORDINATE PLANE
The COORDINATE PLANE is a plane that is divided into four regions (called quadrants) by a horizontal line called the x-axis and a vertical line called the y-axis.
QUADRANT II
QUADRANT I
QUADRANT III
QUADRANT IV

2. The COORDINATE PLANE
The ORIGIN is the place where the x-axis and the y-axis intersect.
The coordinates of the origin are (0,0)
ORIGIN (0,0)

3. The COORDINATE PLANE
A POINT on the coordinate plane can be represented as an ORDERED PAIR. An ordered pair is written in the form, (x, y).
The first number x indicates the distance to the left or right of the origin, and the second number y indicates the distance above or below the origin.
(2,5)
(-3,4)
(4,-2)
(-1,-3)
Plot the point: (2,5)
(-3,4)
(-1,-3)
(4,-2)