Monday, November 8, 2010
More About Slopes
As we know, the equation for slope is: m=Y2-Y1/X2-X1, but, this equation can also be written as: Y1-Y2/X1-X2. It doesn't matter which equation you choose to use, but you must be consistent. You are allowed to use both of these equations because they both mean the same thing:Change in Y/Change in X, which is written as: Δy/Δx, because the greek symbol Delta(Δ) means change.
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Rene Descartes, who was a French philospher, mathematician and physcist founded the Cartestian coordinate system, also called the coordinate plane, which you find slope on.
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