The Rectangular Coordinate System
More Lessons for Algebra
Math Worksheets
A series of free, online Intermediate Algebra Lessons or Algebra II lessons.
Examples, videos, solutions, worksheets, and activities to help Algebra students.
In this lesson, we will learn
- about the rectangular coordinate system
- how to use the midpoint formula
Rectangular Coordinate System
In Algebra, we often use the rectangular coordinate system to graph lines, parabolas and other formulas. Important terms to be familiar with include the y-axis, the x-axis, y-coordinates, x-coordinates and points.The rectangular coordinate system can also be called the coordinate system or the x-y axis.How to talk about the rectangular coordinate system.
Introduction of Coordinate System
A midpoint is the halfway point between two points on a coordinate axis. To calculate the midpoint, we use the midpoint formula which is the average of the x-values and the average of the y-values. To find the average, we add the x-values and divide by two and add the y-values and divide by two. One thing we need to be careful of when calculating the midpoint is to make sure to calculate the negative coordinates accordingly.
The Midpoint Formula
This video gives the formula for finding the midpoint of two points and do one simple example to find the midpoint.
Check out our most popular games!
Fraction Concoction Game:
Master fractions in the lab: mix, add, and subtract beakers to create the perfect concoction!
Fact Family Game:
Complete fact families and master the link between addition & subtraction and multiplication & division.
Number Bond Garden:
Clear the board by matching number pairs that sum to ten in this garden-themed mental math puzzle.
Online Addition Subtraction Game:
Practice your addition and subtraction skills to help the penguin find its mummy.
Penguin Solitaire:
Move all cards to the foundations to build four full sequences. There are two versions here: Penguin (Tuxedo) and Penguin (Original).
Sawayama Solitaire:
This is similar to the common Klondike Solitaire except for a few changes to make it more strategic.
Check out more Solitaire games here.
We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.