The final part here is the slope computation m 2 3 5

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Unformatted text preview: on the variables. These are used fairly regularly from this point on and are simply used to denote the fact that the variables are both x or y values but are, in all likelihood, different. When using this definition do not worry about which point should be the first point and which point should be the second point. You can choose either to be the first and/or second and we’ll get exactly the same value for the slope. There is also a geometric “definition” of the slope of the line as well. You will often hear the slope as being defined as follows, m= rise run The two definitions are identical as the following diagram illustrates. The numerators and denominators of both definitions are the same. © 2007 Paul Dawkins 159 College Algebra Note as well that if we have the slope (written as a fraction) and a point on the line, say ( x1 , y1 ) , then we can easily find a second point that is also on the line. Before seeing how this can be done let’s take the convention that if the slope is negative we will put the minus...
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This note was uploaded on 06/06/2012 for the course ICT 4 taught by Professor Mrvinh during the Spring '12 term at Hanoi University of Technology.

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