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There are three basic methods of graphing a straight line:
1. Point plotting. Select two or three values of x, find the corresponding value of y, plot the points, and connect the dots!
2. Slope-intercept method. Recommended for equations written in the form y=mx+b.
3. Two intercept method. Recommended for equations written in the form ax+by=c.
For additional explanation, see my website by clicking on my tutor name "rapaljer" anywhere in algebra.com. Look for the link on my homepage "Basic, Intermediate, and College Algebra: One Step at a Time", select "Basic Algebra" and look for Chapter 4. The entire explanation is available at this link and it's all free.
For a video of me explaining this topic, on my homepage, look for "Rapalje Videos", select "Basic Algebra", and look for "Graphing and Slope of a Line." Again, it's all FREE!!
Send me an Email if you need help finding anything.
Dr. Robert J. Rapalje
Seminole State College
Altamonte Springs, FL 31714