As you remember from pre-algebra a coordinate plane is a two-dimensional number line where the vertical line is called the y-axis and the horizontal is called the x-axis. These lines are perpendicular and intersect at their zero points. This

**point**is called the origin. The axes divide the plane into four quadrants.Also to know is, how do you plot a point on a coordinate plane?

Graphing a Single

**Point**. Start at (0, 0), or the origin. Just go to (0, 0), which is the intersection of the x and y axes, right in the center of the**coordinate plane**. Move over x units to the right or left.What are coordinates of a point?

The

**coordinates of a point**are a pair of numbers that define its exact location on a two-dimensional plane. Recall that the**coordinate**plane has two axes at right angles to each other, called the x and y axis. The**coordinates**of a given**point**represent how far along each axis the**point**is located.What is used to locate a point on a coordinate plane?

The point where the x and y axes intersect is called the origin. The origin is located at zero on the x axis and zero on the y axis. We can locate any point on the coordinate plane using an ordered pair of numbers like the example shown here, the ordered pair

**4**and**2**(point P).