Graphing equations and inequalities - Watch video (Algebra I)

Algebra I: Graphing equations and inequalities

This is a free lesson from our course in Algebra I


	In this lesson, you'll learn the basics of graphing. In simple terms, the graph of an equation is the set of all the points whose coordinates satisfy the equation. As you can guess, if the equation represents a line, you can draw the graph by connecting all points that satisfy the equation. But even if the equation does not represent a line, its graph can still be drawn by passing through all the points that would satisfy the equation. (More text below video...)

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Rearranging equation into standard form (y=mx+b)

Determining the slope from equation of a line (y=mx+b)

Determining the y-intercept from equation of a line (y=mx+b)

Getting Started - Graph the solution set of a linear inequality

	(Continued from above) The steps involved in drawing a graph are simple: � plug in values of x � compute y from the equation � plot the ordered pair given by these two values � repeat the three steps above till you have a set of points you can connect, and � draw the graph that connects them Many times you'll have a statement such as x > 5 that needs to be graphed. Because this is not an equation, it does not need to be graphed on the coordinate plane. A number line does the job just fine! E.g. Graph: x < 4 Solution: The problem asks you to graph all numbers that are less than 4. This part of lesson also shows us how to graph and find out the solution set of an inequality using graphs.

	As many of you know, Winpossible's online courses use a unique teaching method where an instructor explains the concepts in any given area to you in his/her own voice and handwriting, just like you see your teacher explain things to you on a blackboard in your classroom. This particular lesson includes the teacher's instruction, practice questions as well as end-of-lesson quizzes for practice. As we mentioned above, you can enroll in our online course in Algebra I by clicking here. The format of Winpossible's online courses is also very suitable for teachers who are using an interactive whiteboard such as Smartboard on Promethean in their classrooms, because the course lessons can be easily displayed on such interactive whiteboards. Volume pricing is available for schools interested in our online courses. For more information, please contact us at educators@winpossible.com.