Graphing equations is the heart of Algebra! Especially graphing linear equations, which will be the focus of this unit. You'll find that when working with those impossible word problems, a graph can give you an unbelievable amount of information and help you to solve the problem more easily. You'll also find that linear graphs are used in many real world situations.
So, get your graph paper, ruler, and pencil ready and let's get started graphing.
Use the table of contents below for help on a particular method, or follow along lesson by lesson for a complete unit on graphing equations.
Enter the equation that you want to graph and click "Draw".
If you find that you have difficulty with this unit, try the Algebra Class E-course. In all E-courses, you'll find more examples on video, a lot of practice problems with step-by-step solutions, and quizzes and tests to assess your progress!
An equation is defined as linear when it's graph presents a straight line. These equations contain terms that are either a constant and/or the product of a constant and a single variable to the first power. A linear equation can have more than one variable.
Before you get started, let's just do a quick review of how to graph points on a coordinate plane!
If you haven't graphed points on a coordinate plane in a while, it might be a good idea to practice before you start the Algebra lessons.
Graph the following points on the coordinate plane: Click here to print graph paper.
3. (-4, 1)
5. (6, 0)
If you can graph these points on a coordinate plane, then you are ready to start learning how to graph linear equations!
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