Hi,
The short cut is to take the 2 points and subtract x from the other x and y from the other y.Once you are done put y over x in fraction form and simplify.Keep it in a fraction always.That would be the slope.You can only use this way if you have 2 points.
this is a link to a website to help you under stand more.
http://math.about.com/library/blslope.htm
Today we are going to continue talking about slops.In this post we are going to talk about horizontal lines or no slope, undefined, and a short cut to find slope without graphing.No slope is when you graph it and it comes out in a horizontal line and undefined is when it is A straight vertical line.
The short cut is to take the 2 points and subtract x from the other x and y from the other y.Once you are done put y over x in fraction form and simplify.Keep it in a fraction always.That would be the slope.You can only use this way if you have 2 points.
this is a link to a website to help you under stand more.
http://math.about.com/library/blslope.htm
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