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Slope

Page history last edited by Andrea Grieser 13 years, 8 months ago

Slope is the ratio of the change in y-values to the change in x-values of any two points on a line. 

 

In algebra, slope is usually represented by the letter m.

 

If we have two points on a line, (x1, y1) and (x2, y2), then

 

We can also write the slope formula in terms of the Greek letter delta (), which means "the difference."  Sometimes we call the difference of y-values the "rise" and the difference of x-values the "run."  So another way of expressing the slope formula is to say "rise over run."  Slope also is referred to as "rate of change."

 

 

These class notes provide further explanation and examples. 

 

 

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