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How to Graph Point-Slope

This prezi is supposed to help newcomers to graphing point slope form

Tate Seroczynski

on 25 May 2011

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Transcript of How to Graph Point-Slope

How to graph equations in Point-Slope Form Ex. Write an equation in point slope-form of the line that passes through the point (4, -3) and has a slope of 2. Then graph it. Step 1: use the slope formula y-y1= m(x-x1) now it should look like this: y+3= 2(x-4)
(the reason it is a 3 is a positive because
it was a negative before) now substitute 2 for m, 4 for x, and -3 for y. now plot the ordered pair of (4, -3) After you have plotted the ordered pair, plot down the slope And finally draw your line through both points Lets try another problem! (4,4) and (2,5) are the ordered pairs. Find the slope and graph the equation in point slope form Now you have to use y2-y1 over x2-x1 to find the slope. After you have found the slope, use one of the ordered pairs in your equation Now your equation should look a little something like this... y-4=1/2(x-4) Or... y-5=1/2(x-2) And the graph should look like this: or this... Try to solve these problems... 1. Graph the equation: y-4=1(x-2) The graph should look like this: 2. Graph the equation: y+5=-2(x-6) Finished!
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