scarlettjazz Posted March 24, 2012 Report Share Posted March 24, 2012 (edited) Hi,So from my experimental data I have plotted a negative curve and my best fit has an equation y = (0.5/x) + 2. Now in order to do max/min lines and find the uncertainty in the gradient, I have to somehow make this a straight line graph. What do I have to plot against what to make it a straight line?Thanks Edited March 24, 2012 by scarlettjazz Reply Link to post Share on other sites More sharing options...
IB Smacher Glau Posted March 24, 2012 Report Share Posted March 24, 2012 Use logger pro ! Reply Link to post Share on other sites More sharing options...
khimberleigh Posted March 25, 2012 Report Share Posted March 25, 2012 Plot a new graph but with the X values squared. If that doesn't work then do the same thing but with the Y values squared instead. (Sorry I forgot which one you do for a negative curve) Reply Link to post Share on other sites More sharing options...
omri Posted March 27, 2012 Report Share Posted March 27, 2012 Hello sir, so y +0.5/x, is the same thing as y =0.5x^-1,You must change your x values to 1/x! and then plot y against 1/x!For example if you have a value of 10, change it to 0.1My work here is done.Good day sir. 1 Reply Link to post Share on other sites More sharing options...
Drake Glau Posted March 29, 2012 Report Share Posted March 29, 2012 Couldn't you just plot the X axis as 1/x? This would make your equation 0.5(1/x)+2 but since your axis values are 1/x already it would make it a straight line O.o Reply Link to post Share on other sites More sharing options...
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