Intro to the Coordinate Plane

What's the Point?

Picture the Cartesian Coordinate plane, or x-y plane, as a map of a city's streets. Locating a point on the plane is as easy as finding the corner of 7th Street and Main Street if you know how.

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Take two number lines- a horizontal number line known as the x-axis and a vertical number line known as the y-axis- and cross them. You've just created the Cartesian Coordinate plane, a two dimensional space where we can visualize the mathematical relationship created by equations with 2 variables.

This lesson will feature:

  1. Essential vocabulary like axis, quadrant, origin, coordinate pair, and intercept.

  2. Graphing points on the coordinate plane.

Watch the Virtual GED Class video below for a complete explanation and tons of worked example problems.



Example 1

Example 2

Example 3

Example 4

Extension 1

Extension 2