Lesson Slope of a Line between two points

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This Lesson (Slope of a Line between two points) was created by by rapaljer(4551) About Me : View Source, Show
About rapaljer: Retired Professor of Mathematics from Seminole State College of Florida after 36 years.
HOW TO FIND THE SLOPE OF A LINE BETWEEN TWO POINTS

There is a formula for the slope between two points that looks like this:
m=+%28RISE%29%2F%28RUN%29+=+%28y%5B2%5D+-+y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29+

What this means is to find the difference in the y coordinates (that means to subtract the y values), divided by the difference in the x coordinates (subtract the x values)! Be sure to ALWAYS have the Y's on top!! Always be consistent and when you subtract the y coordinates, be sure you subtract the x coordinates in the same order.

(1,-4)and(4,2)
m+=+%282-%28-4%29%29+%2F%284-1%29+
m=+6%2F3
m=2

R^2 at SCC
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