Solving a System by Graphing

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Taught by mrbrianmclogan
  • Currently 4.0/5 Stars.
6060 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson, students will learn how to solve a system of equations by graphing. The instructor explains two ways to graph an equation: using the slope intercept form and finding the x and y intercepts. They then take students through an example of each method, showing how to plot and connect points to graph the equations. The lesson emphasizes the importance of finding the intersection point as the solution to the system of equations.

Lesson Description:

How to solve a system of equations by graphing

I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exactly how to solve math problems step by step. The problems are done in real time and in front of a regular classroom. These videos are intended to help you learn how to solve math problems, review how to solve a math problems, study for a test, or finish your homework. I post all of my videos on YouTube, but if you are looking for other ways to interact with me and my videos you can follow me on the following pages through My Blog, Twitter, or Facebook.

Questions answered by this video:
  • How do you graph a system of equations?
  • How do you solve a system of equations by graphing?
  • How do you solve the system 2x - 5y = 10 and 3x + y = 15 by graphing?
  • How do you change 3x + y = 15 into slope-intercept form and graph?
  • How do you find the intercepts of 2x - 5y = 10 and graph?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson shows how to graph a system of equations and solve the system by finding the intersection of the two lines. One line is graphed by putting it in slope-intercept form to graph, and the other is graphed using intercepts. The graphs are very roughly sketched, so the solution is not found exactly.