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Graph of Linear Equations
The applet below shows how the ordered pair of values from a linear equation y = mx + c plots a straight line, and shows that the line cuts the y axis at the y intercept value of c, and that the coefficient m is the gradient(slope) of the graph.
http://www.geogebra.org/en/upload/files/english/lewws/lg1mc_r1.html
Use the slider bar "narr" to navigate through the presentation and instructions in the applet (Suitable for classroom demonstration)
You may download the geogebra file for educational use.
lg1mc_r1.ggb
If you have downloaded the ggb file and improved upon it, kindly let me take a look too. Thanks.
Your feedback to author is appreciated : lewweisern@gmail.com.
