How do I create a simple straight line graph in MATLAB?

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boreilly
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i have done a simple experient and now i want to draw a graph in MATLAB. how do i do that? its a straight line graph so i'd like to be able to put on a best fit line and get the slope of that. As basic as this is I'm struggling to find help how to do it on the net.seems i can find a billion pages on graphing functions etc and big fancy 3d graphs. I have a list of voltage measurements and a corresponding speed for each one
 

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Check if this link helps
http://www.swarthmore.edu/NatSci/echeeve1/Ref/Matlab/CurveFit/LinearCurveFit.html
 
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perfect. exactly. thanks.
 

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