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Wednesday, November 17, 2010

Slope

m = \frac{\Delta y}{\Delta x} = \frac{y_2 - y_1}{x_2 - x_1} = \frac{8 - 2}{13 - 1} = \frac{6}{12} = \frac{1}{2}.

This is just an example, but DO NOT forget to line up the Ys and Xs.
For Example as you see above, it is
Y2 - Y1
------------
X2 - X1

Do not forget this!!
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3 comments:

  1. tyfordNovember 18, 2010 at 8:04 AM

    This was very helpful

    ReplyDelete
  2. JonFlockaSweatNovember 18, 2010 at 8:04 AM

    also it doesnt matter what order you put the numbers in because of the commutative property

    ReplyDelete
  3. daniNovember 19, 2010 at 6:32 AM

    heres a good website to practice perpendicular and parallel lines.
    http://www.algebralab.org/lessons/lesson.aspx?file=Geometry_CoordParallelPerpendicular.xml

    ReplyDelete

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